Home / 8,217.31-12,325.92-3,288.09

Finding the Fourth Proportional to 8,217.31, 12,325.92 and 3,288.09

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Solution

The fourth proportional to 8,217.31, 12,325.92 and 3,288.09 is: 4,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,217.31 : 12,325.92 = 3,288.09 : x
  2. Step 2: Convert to fraction form
    8,217.31/12,325.92 = 3,288.09/x
  3. Step 3: Cross multiply
    8,217.31x = 12,325.92 × 3,288.09
  4. Step 4: Simplify right side
    8,217.31x = 40,528,734.29
  5. Step 5: Solve for x
    x = 40,528,734.29/8,217.31
  6. Step 6: Final answer
    x = 4,932.12

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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.