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Finding the Fourth Proportional to 18,342.62, 27,500.45 and 5,855.45

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Solution

The fourth proportional to 18,342.62, 27,500.45 and 5,855.45 is: 8,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.62 : 27,500.45 = 5,855.45 : x
  2. Step 2: Convert to fraction form
    18,342.62/27,500.45 = 5,855.45/x
  3. Step 3: Cross multiply
    18,342.62x = 27,500.45 × 5,855.45
  4. Step 4: Simplify right side
    18,342.62x = 161,027,593.34
  5. Step 5: Solve for x
    x = 161,027,593.34/18,342.62
  6. Step 6: Final answer
    x = 8,778.88

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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.