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Finding the Fourth Proportional to 8,618.67, 11,899.26 and 6,726.92

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Solution

The fourth proportional to 8,618.67, 11,899.26 and 6,726.92 is: 9,287.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.67 : 11,899.26 = 6,726.92 : x
  2. Step 2: Convert to fraction form
    8,618.67/11,899.26 = 6,726.92/x
  3. Step 3: Cross multiply
    8,618.67x = 11,899.26 × 6,726.92
  4. Step 4: Simplify right side
    8,618.67x = 80,045,310.58
  5. Step 5: Solve for x
    x = 80,045,310.58/8,618.67
  6. Step 6: Final answer
    x = 9,287.43

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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.