Which of the ratios is equivalent to 1:4? ​ 4 to 3​

6 to 9​

12 to 48​

9 to 12​

12:48

Step-by-step explanation:

both numbers in the original ratio, 1:4,  multiplied by 12 give you 12:48

Tips for future use:

Imagine the ratio as a fraction. The ratio 1:4 would be 1/4 (one fourth). Then find the equivalent fraction, 2/8 (2:8), 12/48 (12:48) etc...

Resources for further information:

Link #1:

https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-ratios-prop-topic/cc-6th-equivalent-ratios/e/equivalent-ratios

Link #2:

https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-ratios-prop-topic/cc-6th-equivalent-ratios/v/equivalent-ratios

Hope this helps!

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note: the best i know.