Home / 9,129.53-13,691.55-4,744.59

Finding the Fourth Proportional to 9,129.53, 13,691.55 and 4,744.59

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Solution

The fourth proportional to 9,129.53, 13,691.55 and 4,744.59 is: 7,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.53 : 13,691.55 = 4,744.59 : x
  2. Step 2: Convert to fraction form
    9,129.53/13,691.55 = 4,744.59/x
  3. Step 3: Cross multiply
    9,129.53x = 13,691.55 × 4,744.59
  4. Step 4: Simplify right side
    9,129.53x = 64,960,791.21
  5. Step 5: Solve for x
    x = 64,960,791.21/9,129.53
  6. Step 6: Final answer
    x = 7,115.46

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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.