Home / 10,917.30-16,375.95-3,126.09

Finding the Fourth Proportional to 10,917.30, 16,375.95 and 3,126.09

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Solution

The fourth proportional to 10,917.30, 16,375.95 and 3,126.09 is: 4,689.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.30 : 16,375.95 = 3,126.09 : x
  2. Step 2: Convert to fraction form
    10,917.30/16,375.95 = 3,126.09/x
  3. Step 3: Cross multiply
    10,917.30x = 16,375.95 × 3,126.09
  4. Step 4: Simplify right side
    10,917.30x = 51,192,693.54
  5. Step 5: Solve for x
    x = 51,192,693.54/10,917.30
  6. Step 6: Final answer
    x = 4,689.14

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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.