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Finding the Fourth Proportional to 18,498.92, 27,755.66 and 8,103.38

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Solution

The fourth proportional to 18,498.92, 27,755.66 and 8,103.38 is: 12,158.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,498.92 : 27,755.66 = 8,103.38 : x
  2. Step 2: Convert to fraction form
    18,498.92/27,755.66 = 8,103.38/x
  3. Step 3: Cross multiply
    18,498.92x = 27,755.66 × 8,103.38
  4. Step 4: Simplify right side
    18,498.92x = 224,914,541.61
  5. Step 5: Solve for x
    x = 224,914,541.61/18,498.92
  6. Step 6: Final answer
    x = 12,158.26

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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.