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Finding the Fourth Proportional to 8,469.54, 12,699.69 and 6,725.75

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Solution

The fourth proportional to 8,469.54, 12,699.69 and 6,725.75 is: 10,084.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.54 : 12,699.69 = 6,725.75 : x
  2. Step 2: Convert to fraction form
    8,469.54/12,699.69 = 6,725.75/x
  3. Step 3: Cross multiply
    8,469.54x = 12,699.69 × 6,725.75
  4. Step 4: Simplify right side
    8,469.54x = 85,414,876.52
  5. Step 5: Solve for x
    x = 85,414,876.52/8,469.54
  6. Step 6: Final answer
    x = 10,084.95

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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.