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Finding the Fourth Proportional to 18,103.13, 27,148.03 and 6,253.90

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Solution

The fourth proportional to 18,103.13, 27,148.03 and 6,253.90 is: 9,378.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,103.13 : 27,148.03 = 6,253.90 : x
  2. Step 2: Convert to fraction form
    18,103.13/27,148.03 = 6,253.90/x
  3. Step 3: Cross multiply
    18,103.13x = 27,148.03 × 6,253.90
  4. Step 4: Simplify right side
    18,103.13x = 169,781,064.82
  5. Step 5: Solve for x
    x = 169,781,064.82/18,103.13
  6. Step 6: Final answer
    x = 9,378.55

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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.