Home / 13,343.31-18,414.72-7,374.85

Finding the Fourth Proportional to 13,343.31, 18,414.72 and 7,374.85

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Solution

The fourth proportional to 13,343.31, 18,414.72 and 7,374.85 is: 10,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,343.31 : 18,414.72 = 7,374.85 : x
  2. Step 2: Convert to fraction form
    13,343.31/18,414.72 = 7,374.85/x
  3. Step 3: Cross multiply
    13,343.31x = 18,414.72 × 7,374.85
  4. Step 4: Simplify right side
    13,343.31x = 135,805,760.92
  5. Step 5: Solve for x
    x = 135,805,760.92/13,343.31
  6. Step 6: Final answer
    x = 10,177.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.