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Finding the Fourth Proportional to 8,656.57, 11,939.96 and 8,367.25

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Solution

The fourth proportional to 8,656.57, 11,939.96 and 8,367.25 is: 11,540.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.57 : 11,939.96 = 8,367.25 : x
  2. Step 2: Convert to fraction form
    8,656.57/11,939.96 = 8,367.25/x
  3. Step 3: Cross multiply
    8,656.57x = 11,939.96 × 8,367.25
  4. Step 4: Simplify right side
    8,656.57x = 99,904,596.70
  5. Step 5: Solve for x
    x = 99,904,596.70/8,656.57
  6. Step 6: Final answer
    x = 11,540.90

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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.