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Finding the Fourth Proportional to 8,500.71, 11,731.73 and 4,724.61

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Solution

The fourth proportional to 8,500.71, 11,731.73 and 4,724.61 is: 6,520.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.71 : 11,731.73 = 4,724.61 : x
  2. Step 2: Convert to fraction form
    8,500.71/11,731.73 = 4,724.61/x
  3. Step 3: Cross multiply
    8,500.71x = 11,731.73 × 4,724.61
  4. Step 4: Simplify right side
    8,500.71x = 55,427,825.25
  5. Step 5: Solve for x
    x = 55,427,825.25/8,500.71
  6. Step 6: Final answer
    x = 6,520.38

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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.