Home / 8,930.82-13,398.03-2,691.21

Finding the Fourth Proportional to 8,930.82, 13,398.03 and 2,691.21

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Solution

The fourth proportional to 8,930.82, 13,398.03 and 2,691.21 is: 4,037.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.82 : 13,398.03 = 2,691.21 : x
  2. Step 2: Convert to fraction form
    8,930.82/13,398.03 = 2,691.21/x
  3. Step 3: Cross multiply
    8,930.82x = 13,398.03 × 2,691.21
  4. Step 4: Simplify right side
    8,930.82x = 36,056,912.32
  5. Step 5: Solve for x
    x = 36,056,912.32/8,930.82
  6. Step 6: Final answer
    x = 4,037.36

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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.