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Finding the Fourth Proportional to 8,575.22, 12,865.62 and 3,894.68

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Solution

The fourth proportional to 8,575.22, 12,865.62 and 3,894.68 is: 5,843.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.22 : 12,865.62 = 3,894.68 : x
  2. Step 2: Convert to fraction form
    8,575.22/12,865.62 = 3,894.68/x
  3. Step 3: Cross multiply
    8,575.22x = 12,865.62 × 3,894.68
  4. Step 4: Simplify right side
    8,575.22x = 50,107,472.90
  5. Step 5: Solve for x
    x = 50,107,472.90/8,575.22
  6. Step 6: Final answer
    x = 5,843.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.