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Finding the Fourth Proportional to 8,957.70, 13,447.35 and 8,892.90

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Solution

The fourth proportional to 8,957.70, 13,447.35 and 8,892.90 is: 13,350.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.70 : 13,447.35 = 8,892.90 : x
  2. Step 2: Convert to fraction form
    8,957.70/13,447.35 = 8,892.90/x
  3. Step 3: Cross multiply
    8,957.70x = 13,447.35 × 8,892.90
  4. Step 4: Simplify right side
    8,957.70x = 119,585,938.82
  5. Step 5: Solve for x
    x = 119,585,938.82/8,957.70
  6. Step 6: Final answer
    x = 13,350.07

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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.