Finding the Fourth Proportional to 15,665.19, 23,456.22 and 12,253.99
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Solution
The fourth proportional to 15,665.19, 23,456.22 and 12,253.99 is: 18,348.46
Step by Step Solution
- Step 1: Write the proportion equation
15,665.19 : 23,456.22 = 12,253.99 : x - Step 2: Convert to fraction form
15,665.19/23,456.22 = 12,253.99/x - Step 3: Cross multiply
15,665.19x = 23,456.22 × 12,253.99 - Step 4: Simplify right side
15,665.19x = 287,432,180.72 - Step 5: Solve for x
x = 287,432,180.72/15,665.19 - Step 6: Final answer
x = 18,348.46
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1.5x scale
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.