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Finding the Fourth Proportional to 8,453.97, 12,684.60 and 5,691.06

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Solution

The fourth proportional to 8,453.97, 12,684.60 and 5,691.06 is: 8,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.97 : 12,684.60 = 5,691.06 : x
  2. Step 2: Convert to fraction form
    8,453.97/12,684.60 = 5,691.06/x
  3. Step 3: Cross multiply
    8,453.97x = 12,684.60 × 5,691.06
  4. Step 4: Simplify right side
    8,453.97x = 72,188,819.68
  5. Step 5: Solve for x
    x = 72,188,819.68/8,453.97
  6. Step 6: Final answer
    x = 8,539.04

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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.