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Finding the Fourth Proportional to 18,007.04, 26,997.96 and 8,635.88

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Solution

The fourth proportional to 18,007.04, 26,997.96 and 8,635.88 is: 12,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,007.04 : 26,997.96 = 8,635.88 : x
  2. Step 2: Convert to fraction form
    18,007.04/26,997.96 = 8,635.88/x
  3. Step 3: Cross multiply
    18,007.04x = 26,997.96 × 8,635.88
  4. Step 4: Simplify right side
    18,007.04x = 233,151,142.80
  5. Step 5: Solve for x
    x = 233,151,142.80/18,007.04
  6. Step 6: Final answer
    x = 12,947.78

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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.