Home / 10,925.20-16,384.20-3,998.80

Finding the Fourth Proportional to 10,925.20, 16,384.20 and 3,998.80

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Solution

The fourth proportional to 10,925.20, 16,384.20 and 3,998.80 is: 5,996.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,925.20 : 16,384.20 = 3,998.80 : x
  2. Step 2: Convert to fraction form
    10,925.20/16,384.20 = 3,998.80/x
  3. Step 3: Cross multiply
    10,925.20x = 16,384.20 × 3,998.80
  4. Step 4: Simplify right side
    10,925.20x = 65,517,138.96
  5. Step 5: Solve for x
    x = 65,517,138.96/10,925.20
  6. Step 6: Final answer
    x = 5,996.88

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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.