Question

I want to know how to determine the numbers in proportion??

Answer 1

. A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."
Hope You Understand

Answer 2

Ratios and proportions are closely linked to each other as concepts. A ratio tells you how much of one quantity there is compared to another quantity, whereas a proportion tells you that two ratios are equal. If you’re making a drink from a concentrate with one part concentrate to five parts water, the ratio is 1:5. If you make the same drink in a ratio of 2:10, the two finished drinks will have the same strength of flavor. The two ratios are proportionate. In other words, you can multiply both parts of one ratio by the same number to arrive at the second ratio. Learning to calculate ratios and proportions can help you solve many problems in real life and in math class.