Home / 10,775.20-16,165.39-3,379.66

Finding the Fourth Proportional to 10,775.20, 16,165.39 and 3,379.66

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Solution

The fourth proportional to 10,775.20, 16,165.39 and 3,379.66 is: 5,070.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,775.20 : 16,165.39 = 3,379.66 : x
  2. Step 2: Convert to fraction form
    10,775.20/16,165.39 = 3,379.66/x
  3. Step 3: Cross multiply
    10,775.20x = 16,165.39 × 3,379.66
  4. Step 4: Simplify right side
    10,775.20x = 54,633,521.97
  5. Step 5: Solve for x
    x = 54,633,521.97/10,775.20
  6. Step 6: Final answer
    x = 5,070.30

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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.