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Finding the Fourth Proportional to 18,001, 27,000.36 and 5,520.04

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Solution

The fourth proportional to 18,001, 27,000.36 and 5,520.04 is: 8,279.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,001 : 27,000.36 = 5,520.04 : x
  2. Step 2: Convert to fraction form
    18,001/27,000.36 = 5,520.04/x
  3. Step 3: Cross multiply
    18,001x = 27,000.36 × 5,520.04
  4. Step 4: Simplify right side
    18,001x = 149,043,067.21
  5. Step 5: Solve for x
    x = 149,043,067.21/18,001
  6. Step 6: Final answer
    x = 8,279.71

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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.