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Finding the Fourth Proportional to 8,681.22, 13,008.18 and 6,711.66

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Solution

The fourth proportional to 8,681.22, 13,008.18 and 6,711.66 is: 10,056.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.22 : 13,008.18 = 6,711.66 : x
  2. Step 2: Convert to fraction form
    8,681.22/13,008.18 = 6,711.66/x
  3. Step 3: Cross multiply
    8,681.22x = 13,008.18 × 6,711.66
  4. Step 4: Simplify right side
    8,681.22x = 87,306,481.38
  5. Step 5: Solve for x
    x = 87,306,481.38/8,681.22
  6. Step 6: Final answer
    x = 10,056.94

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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.