Finding the Fourth Proportional to 12,517.03, 18,759.09 and 6,972.99
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Solution
The fourth proportional to 12,517.03, 18,759.09 and 6,972.99 is: 10,450.31
Step by Step Solution
- Step 1: Write the proportion equation
12,517.03 : 18,759.09 = 6,972.99 : x - Step 2: Convert to fraction form
12,517.03/18,759.09 = 6,972.99/x - Step 3: Cross multiply
12,517.03x = 18,759.09 × 6,972.99 - Step 4: Simplify right side
12,517.03x = 130,806,902.78 - Step 5: Solve for x
x = 130,806,902.78/12,517.03 - Step 6: Final answer
x = 10,450.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.