What does Proportion Mean?

In mathematics, a proportion usually deals with ratios and finding if one fraction or ratio is proportional to another. To do this, you need to equate the ratios. For example, if 1/2 is equal to Y/10 then we have to solve for Y to get the proportion between these ratios. To find Y, we cross multiply, and get 10×1= 2Y, or that Y=5. So the proportion is stated as 1 is to 2 as 5 is to 10. For more information, look here: