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Finding the Fourth Proportional to 9,287.73, 13,937.67 and 8,672.74

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Solution

The fourth proportional to 9,287.73, 13,937.67 and 8,672.74 is: 13,014.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,287.73 : 13,937.67 = 8,672.74 : x
  2. Step 2: Convert to fraction form
    9,287.73/13,937.67 = 8,672.74/x
  3. Step 3: Cross multiply
    9,287.73x = 13,937.67 × 8,672.74
  4. Step 4: Simplify right side
    9,287.73x = 120,877,753.27
  5. Step 5: Solve for x
    x = 120,877,753.27/9,287.73
  6. Step 6: Final answer
    x = 13,014.78

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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.