Home / 13,402.20-20,098.14-6,376.80

Finding the Fourth Proportional to 13,402.20, 20,098.14 and 6,376.80

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Solution

The fourth proportional to 13,402.20, 20,098.14 and 6,376.80 is: 9,562.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.20 : 20,098.14 = 6,376.80 : x
  2. Step 2: Convert to fraction form
    13,402.20/20,098.14 = 6,376.80/x
  3. Step 3: Cross multiply
    13,402.20x = 20,098.14 × 6,376.80
  4. Step 4: Simplify right side
    13,402.20x = 128,161,819.15
  5. Step 5: Solve for x
    x = 128,161,819.15/13,402.20
  6. Step 6: Final answer
    x = 9,562.74

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1.5x scale

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.