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# Proportion Properties

## Two ratios set equal to each other.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Proportion Properties

by CK-12 //basic
Apply proportion properties.
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## Proportions Principles - Basic

by CK-12 //basic
This video provides the student with a walkthrough on proportions.
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## Proportions Examples - Basic

by CK-12 //basic
This video provides the student with a walkthrough of one or more examples from the concept "Proportions".
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## Proportions

by CK-12 //basic
Defines a proportion and explains how to solve a proportion.
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## Applications of Proportions

by CK-12 //basic
Provides several problems that can be solved using proportions.
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## Solving for Unknown Values Using the Properties of Similar Triangles

by CK-12 //basic
Shows examples of determining unknown values using the properties of similar triangles.
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