Home / 13,708.13-20,562.26-3,319.88

Finding the Fourth Proportional to 13,708.13, 20,562.26 and 3,319.88

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Solution

The fourth proportional to 13,708.13, 20,562.26 and 3,319.88 is: 4,979.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.13 : 20,562.26 = 3,319.88 : x
  2. Step 2: Convert to fraction form
    13,708.13/20,562.26 = 3,319.88/x
  3. Step 3: Cross multiply
    13,708.13x = 20,562.26 × 3,319.88
  4. Step 4: Simplify right side
    13,708.13x = 68,264,116.32
  5. Step 5: Solve for x
    x = 68,264,116.32/13,708.13
  6. Step 6: Final answer
    x = 4,979.83

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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.