Home / 11,122.38-16,689.24-6,961.68

Finding the Fourth Proportional to 11,122.38, 16,689.24 and 6,961.68

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Solution

The fourth proportional to 11,122.38, 16,689.24 and 6,961.68 is: 10,446.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,122.38 : 16,689.24 = 6,961.68 : x
  2. Step 2: Convert to fraction form
    11,122.38/16,689.24 = 6,961.68/x
  3. Step 3: Cross multiply
    11,122.38x = 16,689.24 × 6,961.68
  4. Step 4: Simplify right side
    11,122.38x = 116,185,148.32
  5. Step 5: Solve for x
    x = 116,185,148.32/11,122.38
  6. Step 6: Final answer
    x = 10,446.07

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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.