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# Proportions to Find Base b

## Cross - multiply to find a missing part of a proportion, base, b.

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## Proportions to Find Base b

Explains how to use proportions and cross products to solve for the base as well as the percent and the amount.

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## Proportions to Find Base b

Use the cross products of proportions to find base b in percent problems.

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## Precent Problems (Using Proportions & Equations)

Use the cross products of proportions to find base b in percent problems.

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• PLIX

## Proportions to Find Base: Tiled Floor

Proportions to Find Base b Interactive

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• Video

## Find the Whole Given the Percents and Parts - Overview

by CK-12 //basic

Overview

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## Example 2: Solve a Percent Problem with a Percent Proportion

by CK-12 //basic

Goes through the steps of solving 36 is 15% of what number using a percent proportion.

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## Find the Whole Given the Percents and Parts - Example 1

by CK-12 //basic

Whole number percentage calculations - without units

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## Find the Whole Given the Percents and Parts - Example 2

by CK-12 //basic

Whole number percentage calculations - with units

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## Find the Whole Given the Percents and Parts - Example 3

by CK-12 //basic

Whole number percentage calculations - with compound units

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• Video

## Find the Whole Given the Percents and Parts - Example 4

by CK-12 //basic

Decimal percentage calculations - without units

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## Find the Whole Given the Percents and Parts - Example 5

by CK-12 //basic

Decimal percentage calculations - with units

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## Find the Whole Given the Percents and Parts - Example 6

by CK-12 //basic

Percentage calculation - one-step word problems

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## Find the Whole Given the Percents and Parts - Example 7

by CK-12 //basic

Percentage calculation - two-step word problems

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• Video

## Find the Whole Given the Percents and Parts - Example 8

by CK-12 //basic

Percentage calculation - multi-step word problems

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• Practice
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## Use the Cross Products of Proportions to Find Base b Post Read

Develop understanding of concepts by studying them in a relational manner. Analyze and refine the concept by summarizing the main idea, creating visual aids, and generating questions and comments using a Four Square Concept Matrix.

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## Mixtures

by Kyle Bardman //basic

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• Flashcards

## Proportions to Find Base b

by Kyle Bardman //basic