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Finding the Fourth Proportional to 8,500.22, 12,750.79 and 2,657.29

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Solution

The fourth proportional to 8,500.22, 12,750.79 and 2,657.29 is: 3,986.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,500.22 : 12,750.79 = 2,657.29 : x
  2. Step 2: Convert to fraction form
    8,500.22/12,750.79 = 2,657.29/x
  3. Step 3: Cross multiply
    8,500.22x = 12,750.79 × 2,657.29
  4. Step 4: Simplify right side
    8,500.22x = 33,882,508.24
  5. Step 5: Solve for x
    x = 33,882,508.24/8,500.22
  6. Step 6: Final answer
    x = 3,986.07

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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.