Missing Proportions Worksheets

How to Find Missing Parts of Equivalent Ratios - Ratios are mathematical expressions where two values with the same units are compared. Ratios are a quantitative relationship between two categories. When solving ratios, you will come across the concept of equivalent ratios. Ratios are said to be equivalent when each of them expresses the same relationship. To determine whether two ratios are equivalent, you can use the cross-multiplication method. Cross-multiplication is when you multiply the numerator of one ratio with the denominator of the other ratio and denominator of the first ratio with the numerator of the second ratio. If the result of both products is equal, the ratios are said to be equivalent. We can use the same cross-multiplication method to find the missing parts of an equivalent ratio. Consider the following example;

This is how you find missing parts of equivalent ratios.