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Finding the Fourth Proportional to 18,000.60, 26,997.42 and 5,517.60

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Solution

The fourth proportional to 18,000.60, 26,997.42 and 5,517.60 is: 8,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.60 : 26,997.42 = 5,517.60 : x
  2. Step 2: Convert to fraction form
    18,000.60/26,997.42 = 5,517.60/x
  3. Step 3: Cross multiply
    18,000.60x = 26,997.42 × 5,517.60
  4. Step 4: Simplify right side
    18,000.60x = 148,960,964.59
  5. Step 5: Solve for x
    x = 148,960,964.59/18,000.60
  6. Step 6: Final answer
    x = 8,275.33

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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.