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Finding the Fourth Proportional to 18,115.92, 27,121.57 and 10,596.69

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Solution

The fourth proportional to 18,115.92, 27,121.57 and 10,596.69 is: 15,864.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,115.92 : 27,121.57 = 10,596.69 : x
  2. Step 2: Convert to fraction form
    18,115.92/27,121.57 = 10,596.69/x
  3. Step 3: Cross multiply
    18,115.92x = 27,121.57 × 10,596.69
  4. Step 4: Simplify right side
    18,115.92x = 287,398,843.11
  5. Step 5: Solve for x
    x = 287,398,843.11/18,115.92
  6. Step 6: Final answer
    x = 15,864.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.