Home / 11,439.22-17,160.69-3,539.90

Finding the Fourth Proportional to 11,439.22, 17,160.69 and 3,539.90

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Solution

The fourth proportional to 11,439.22, 17,160.69 and 3,539.90 is: 5,310.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,439.22 : 17,160.69 = 3,539.90 : x
  2. Step 2: Convert to fraction form
    11,439.22/17,160.69 = 3,539.90/x
  3. Step 3: Cross multiply
    11,439.22x = 17,160.69 × 3,539.90
  4. Step 4: Simplify right side
    11,439.22x = 60,747,126.53
  5. Step 5: Solve for x
    x = 60,747,126.53/11,439.22
  6. Step 6: Final answer
    x = 5,310.43

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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.