Home / 10,940.27-16,419-7,631.83

Finding the Fourth Proportional to 10,940.27, 16,419 and 7,631.83

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Solution

The fourth proportional to 10,940.27, 16,419 and 7,631.83 is: 11,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,940.27 : 16,419 = 7,631.83 : x
  2. Step 2: Convert to fraction form
    10,940.27/16,419 = 7,631.83/x
  3. Step 3: Cross multiply
    10,940.27x = 16,419 × 7,631.83
  4. Step 4: Simplify right side
    10,940.27x = 125,306,934.68
  5. Step 5: Solve for x
    x = 125,306,934.68/10,940.27
  6. Step 6: Final answer
    x = 11,453.73

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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.