Which of the following ratios is proportional to 4 adults: 12 children? 3 adults: 1 child 2 adults: 6 children 8 adults: 20 children 6 adults: 16 children

hi there!

the answer will be d: 2

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional

answer: he is 272195

step-by-step explanation: all you have to do is multiple 3535 and 77 and it equals 272195