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Finding the Fourth Proportional to 18,108, 27,170.24 and 10,727.04

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Solution

The fourth proportional to 18,108, 27,170.24 and 10,727.04 is: 16,095.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108 : 27,170.24 = 10,727.04 : x
  2. Step 2: Convert to fraction form
    18,108/27,170.24 = 10,727.04/x
  3. Step 3: Cross multiply
    18,108x = 27,170.24 × 10,727.04
  4. Step 4: Simplify right side
    18,108x = 291,456,251.29
  5. Step 5: Solve for x
    x = 291,456,251.29/18,108
  6. Step 6: Final answer
    x = 16,095.44

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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.