Home / 10,422.60-15,637.10-8,232.20

Finding the Fourth Proportional to 10,422.60, 15,637.10 and 8,232.20

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Solution

The fourth proportional to 10,422.60, 15,637.10 and 8,232.20 is: 12,350.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,422.60 : 15,637.10 = 8,232.20 : x
  2. Step 2: Convert to fraction form
    10,422.60/15,637.10 = 8,232.20/x
  3. Step 3: Cross multiply
    10,422.60x = 15,637.10 × 8,232.20
  4. Step 4: Simplify right side
    10,422.60x = 128,727,734.62
  5. Step 5: Solve for x
    x = 128,727,734.62/10,422.60
  6. Step 6: Final answer
    x = 12,350.83

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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.