12/20 = 3/5
7:12
3
12 is to x as 25 is to 100 x = 48
1/6=x/12 12=6x 2=x
1.17:1 is the ratio which forms a proportion of 12:7
To do a proportion all you have to do is find the equivilent fraction. For example: 4/7=12/221
7:12
It depends on what that is. 312 : 624 is a ratio. 3 : 12 = 6 : 24 is a proportion.
4/7 = 12/21
12/20 = 3/5
7:12
3
12 is to x as 25 is to 100 x = 48
4/12
2
A proportion is a statement built up of two ratios. A ratio is a comparison of two numbers. EX: Ratio- a:b or a/b EX: Proportion- 12/16=3/4 or 12:16=3:4