Home / 12,239.62-18,359.60-3,474.53

Finding the Fourth Proportional to 12,239.62, 18,359.60 and 3,474.53

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Solution

The fourth proportional to 12,239.62, 18,359.60 and 3,474.53 is: 5,211.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.62 : 18,359.60 = 3,474.53 : x
  2. Step 2: Convert to fraction form
    12,239.62/18,359.60 = 3,474.53/x
  3. Step 3: Cross multiply
    12,239.62x = 18,359.60 × 3,474.53
  4. Step 4: Simplify right side
    12,239.62x = 63,791,032.78
  5. Step 5: Solve for x
    x = 63,791,032.78/12,239.62
  6. Step 6: Final answer
    x = 5,211.85

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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.