Home / 13,382.28-20,073.42-5,581.98

Finding the Fourth Proportional to 13,382.28, 20,073.42 and 5,581.98

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Solution

The fourth proportional to 13,382.28, 20,073.42 and 5,581.98 is: 8,372.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.28 : 20,073.42 = 5,581.98 : x
  2. Step 2: Convert to fraction form
    13,382.28/20,073.42 = 5,581.98/x
  3. Step 3: Cross multiply
    13,382.28x = 20,073.42 × 5,581.98
  4. Step 4: Simplify right side
    13,382.28x = 112,049,428.97
  5. Step 5: Solve for x
    x = 112,049,428.97/13,382.28
  6. Step 6: Final answer
    x = 8,372.97

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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.