Home / 10,939.77-16,418.25-7,631.33

Finding the Fourth Proportional to 10,939.77, 16,418.25 and 7,631.33

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Solution

The fourth proportional to 10,939.77, 16,418.25 and 7,631.33 is: 11,452.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.77 : 16,418.25 = 7,631.33 : x
  2. Step 2: Convert to fraction form
    10,939.77/16,418.25 = 7,631.33/x
  3. Step 3: Cross multiply
    10,939.77x = 16,418.25 × 7,631.33
  4. Step 4: Simplify right side
    10,939.77x = 125,293,001.68
  5. Step 5: Solve for x
    x = 125,293,001.68/10,939.77
  6. Step 6: Final answer
    x = 11,452.98

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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.