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Finding the Fourth Proportional to 8,520.53, 11,755.05 and 6,287.73

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Solution

The fourth proportional to 8,520.53, 11,755.05 and 6,287.73 is: 8,674.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520.53 : 11,755.05 = 6,287.73 : x
  2. Step 2: Convert to fraction form
    8,520.53/11,755.05 = 6,287.73/x
  3. Step 3: Cross multiply
    8,520.53x = 11,755.05 × 6,287.73
  4. Step 4: Simplify right side
    8,520.53x = 73,912,580.54
  5. Step 5: Solve for x
    x = 73,912,580.54/8,520.53
  6. Step 6: Final answer
    x = 8,674.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.