Home / 8,141.38-11,222.85-6,369.91

Finding the Fourth Proportional to 8,141.38, 11,222.85 and 6,369.91

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Solution

The fourth proportional to 8,141.38, 11,222.85 and 6,369.91 is: 8,780.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,141.38 : 11,222.85 = 6,369.91 : x
  2. Step 2: Convert to fraction form
    8,141.38/11,222.85 = 6,369.91/x
  3. Step 3: Cross multiply
    8,141.38x = 11,222.85 × 6,369.91
  4. Step 4: Simplify right side
    8,141.38x = 71,488,540.27
  5. Step 5: Solve for x
    x = 71,488,540.27/8,141.38
  6. Step 6: Final answer
    x = 8,780.89

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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.