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Finding the Fourth Proportional to 8,609.54, 11,892.87 and 6,744.71

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Solution

The fourth proportional to 8,609.54, 11,892.87 and 6,744.71 is: 9,316.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,609.54 : 11,892.87 = 6,744.71 : x
  2. Step 2: Convert to fraction form
    8,609.54/11,892.87 = 6,744.71/x
  3. Step 3: Cross multiply
    8,609.54x = 11,892.87 × 6,744.71
  4. Step 4: Simplify right side
    8,609.54x = 80,213,988.95
  5. Step 5: Solve for x
    x = 80,213,988.95/8,609.54
  6. Step 6: Final answer
    x = 9,316.88

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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.