A glacier advanced 12 feet during a 16-day period in January. The same glacier advanced 18 feet during a 24-day period in February. Are the ratios of feet to days proportional for these two periods of time?

Drag and drop to correctly complete the statement.

3 feet : 4 days  

Explanation:

Ratio of feet to days in January:   Ratio of feet to days in February:

        12 feet to 16 days                            18 feet to 24 days

Now let us reduce both to the lowest terms and compare;

 Divide by 4                                              Divide by 6

    3 feet : 4 days                                     3 feet : 4 days  

For both time periods, the ratio of feet to days are the same.