Home / 10,863.38-14,992.68-6,147.97

Finding the Fourth Proportional to 10,863.38, 14,992.68 and 6,147.97

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Solution

The fourth proportional to 10,863.38, 14,992.68 and 6,147.97 is: 8,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,863.38 : 14,992.68 = 6,147.97 : x
  2. Step 2: Convert to fraction form
    10,863.38/14,992.68 = 6,147.97/x
  3. Step 3: Cross multiply
    10,863.38x = 14,992.68 × 6,147.97
  4. Step 4: Simplify right side
    10,863.38x = 92,174,546.86
  5. Step 5: Solve for x
    x = 92,174,546.86/10,863.38
  6. Step 6: Final answer
    x = 8,484.89

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1.5x scale

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.