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Finding the Fourth Proportional to 18,157.97, 27,223.11 and 9,387.29

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Solution

The fourth proportional to 18,157.97, 27,223.11 and 9,387.29 is: 14,073.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,157.97 : 27,223.11 = 9,387.29 : x
  2. Step 2: Convert to fraction form
    18,157.97/27,223.11 = 9,387.29/x
  3. Step 3: Cross multiply
    18,157.97x = 27,223.11 × 9,387.29
  4. Step 4: Simplify right side
    18,157.97x = 255,551,228.27
  5. Step 5: Solve for x
    x = 255,551,228.27/18,157.97
  6. Step 6: Final answer
    x = 14,073.78

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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.