Home / 8,531.31-12,796.97-2,687.97

Finding the Fourth Proportional to 8,531.31, 12,796.97 and 2,687.97

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Solution

The fourth proportional to 8,531.31, 12,796.97 and 2,687.97 is: 4,031.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.31 : 12,796.97 = 2,687.97 : x
  2. Step 2: Convert to fraction form
    8,531.31/12,796.97 = 2,687.97/x
  3. Step 3: Cross multiply
    8,531.31x = 12,796.97 × 2,687.97
  4. Step 4: Simplify right side
    8,531.31x = 34,397,871.45
  5. Step 5: Solve for x
    x = 34,397,871.45/8,531.31
  6. Step 6: Final answer
    x = 4,031.96

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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.