Home / 10,348.80-15,523.22-5,419.88

Finding the Fourth Proportional to 10,348.80, 15,523.22 and 5,419.88

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Solution

The fourth proportional to 10,348.80, 15,523.22 and 5,419.88 is: 8,129.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,348.80 : 15,523.22 = 5,419.88 : x
  2. Step 2: Convert to fraction form
    10,348.80/15,523.22 = 5,419.88/x
  3. Step 3: Cross multiply
    10,348.80x = 15,523.22 × 5,419.88
  4. Step 4: Simplify right side
    10,348.80x = 84,133,989.61
  5. Step 5: Solve for x
    x = 84,133,989.61/10,348.80
  6. Step 6: Final answer
    x = 8,129.83

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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.