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Finding the Fourth Proportional to 15,108, 22,640.10 and 8,520.18

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Solution

The fourth proportional to 15,108, 22,640.10 and 8,520.18 is: 12,767.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,108 : 22,640.10 = 8,520.18 : x
  2. Step 2: Convert to fraction form
    15,108/22,640.10 = 8,520.18/x
  3. Step 3: Cross multiply
    15,108x = 22,640.10 × 8,520.18
  4. Step 4: Simplify right side
    15,108x = 192,897,727.22
  5. Step 5: Solve for x
    x = 192,897,727.22/15,108
  6. Step 6: Final answer
    x = 12,767.92

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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.