Home / 10,679.38-14,738.11-6,142

Finding the Fourth Proportional to 10,679.38, 14,738.11 and 6,142

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Solution

The fourth proportional to 10,679.38, 14,738.11 and 6,142 is: 8,476.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,679.38 : 14,738.11 = 6,142 : x
  2. Step 2: Convert to fraction form
    10,679.38/14,738.11 = 6,142/x
  3. Step 3: Cross multiply
    10,679.38x = 14,738.11 × 6,142
  4. Step 4: Simplify right side
    10,679.38x = 90,521,471.62
  5. Step 5: Solve for x
    x = 90,521,471.62/10,679.38
  6. Step 6: Final answer
    x = 8,476.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.