Home / 13,708.30-20,562.39-5,382.49

Finding the Fourth Proportional to 13,708.30, 20,562.39 and 5,382.49

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Solution

The fourth proportional to 13,708.30, 20,562.39 and 5,382.49 is: 8,073.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.30 : 20,562.39 = 5,382.49 : x
  2. Step 2: Convert to fraction form
    13,708.30/20,562.39 = 5,382.49/x
  3. Step 3: Cross multiply
    13,708.30x = 20,562.39 × 5,382.49
  4. Step 4: Simplify right side
    13,708.30x = 110,676,858.55
  5. Step 5: Solve for x
    x = 110,676,858.55/13,708.30
  6. Step 6: Final answer
    x = 8,073.71

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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.