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Finding the Fourth Proportional to 8,469.69, 11,694 and 6,476.77

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Solution

The fourth proportional to 8,469.69, 11,694 and 6,476.77 is: 8,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.69 : 11,694 = 6,476.77 : x
  2. Step 2: Convert to fraction form
    8,469.69/11,694 = 6,476.77/x
  3. Step 3: Cross multiply
    8,469.69x = 11,694 × 6,476.77
  4. Step 4: Simplify right side
    8,469.69x = 75,739,348.38
  5. Step 5: Solve for x
    x = 75,739,348.38/8,469.69
  6. Step 6: Final answer
    x = 8,942.40

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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.