Home / 10,930.86-16,398.45-7,029.90

Finding the Fourth Proportional to 10,930.86, 16,398.45 and 7,029.90

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Solution

The fourth proportional to 10,930.86, 16,398.45 and 7,029.90 is: 10,546.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,930.86 : 16,398.45 = 7,029.90 : x
  2. Step 2: Convert to fraction form
    10,930.86/16,398.45 = 7,029.90/x
  3. Step 3: Cross multiply
    10,930.86x = 16,398.45 × 7,029.90
  4. Step 4: Simplify right side
    10,930.86x = 115,279,463.66
  5. Step 5: Solve for x
    x = 115,279,463.66/10,930.86
  6. Step 6: Final answer
    x = 10,546.24

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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.