Home / 9,127.40-13,691.10-3,281.90

Finding the Fourth Proportional to 9,127.40, 13,691.10 and 3,281.90

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Solution

The fourth proportional to 9,127.40, 13,691.10 and 3,281.90 is: 4,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,127.40 : 13,691.10 = 3,281.90 : x
  2. Step 2: Convert to fraction form
    9,127.40/13,691.10 = 3,281.90/x
  3. Step 3: Cross multiply
    9,127.40x = 13,691.10 × 3,281.90
  4. Step 4: Simplify right side
    9,127.40x = 44,932,821.09
  5. Step 5: Solve for x
    x = 44,932,821.09/9,127.40
  6. Step 6: Final answer
    x = 4,922.85

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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.