Home / 8,691.18-13,028.37-5,731.85

Finding the Fourth Proportional to 8,691.18, 13,028.37 and 5,731.85

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Solution

The fourth proportional to 8,691.18, 13,028.37 and 5,731.85 is: 8,592.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.18 : 13,028.37 = 5,731.85 : x
  2. Step 2: Convert to fraction form
    8,691.18/13,028.37 = 5,731.85/x
  3. Step 3: Cross multiply
    8,691.18x = 13,028.37 × 5,731.85
  4. Step 4: Simplify right side
    8,691.18x = 74,676,597.44
  5. Step 5: Solve for x
    x = 74,676,597.44/8,691.18
  6. Step 6: Final answer
    x = 8,592.23

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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.