i really need help with this due soon!! will mark brainliest

Answer:
3.5
Step-by-step explanation:
21/6 = 14/4= 10.5/3
All would be 3.5
Answer:
3.5
Step-by-step explanation:
10.5 divided by 3 is 3.5
14 divided by 4 is 3.5
21 divided by 6 is 3.5
XYZ is 3.5 times bigger than RST