Home / 12,601.28-18,901.28-3,836

Finding the Fourth Proportional to 12,601.28, 18,901.28 and 3,836

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Solution

The fourth proportional to 12,601.28, 18,901.28 and 3,836 is: 5,753.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,601.28 : 18,901.28 = 3,836 : x
  2. Step 2: Convert to fraction form
    12,601.28/18,901.28 = 3,836/x
  3. Step 3: Cross multiply
    12,601.28x = 18,901.28 × 3,836
  4. Step 4: Simplify right side
    12,601.28x = 72,505,310.08
  5. Step 5: Solve for x
    x = 72,505,310.08/12,601.28
  6. Step 6: Final answer
    x = 5,753.81

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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.