Finding the Fourth Proportional to 15,135.18, 22,708.44 and 6,812.70
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Solution
The fourth proportional to 15,135.18, 22,708.44 and 6,812.70 is: 10,221.60
Step by Step Solution
- Step 1: Write the proportion equation
15,135.18 : 22,708.44 = 6,812.70 : x - Step 2: Convert to fraction form
15,135.18/22,708.44 = 6,812.70/x - Step 3: Cross multiply
15,135.18x = 22,708.44 × 6,812.70 - Step 4: Simplify right side
15,135.18x = 154,705,789.19 - Step 5: Solve for x
x = 154,705,789.19/15,135.18 - Step 6: Final answer
x = 10,221.60
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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.