Home / 8,442.90-12,661.92-3,247.56

Finding the Fourth Proportional to 8,442.90, 12,661.92 and 3,247.56

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Solution

The fourth proportional to 8,442.90, 12,661.92 and 3,247.56 is: 4,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,442.90 : 12,661.92 = 3,247.56 : x
  2. Step 2: Convert to fraction form
    8,442.90/12,661.92 = 3,247.56/x
  3. Step 3: Cross multiply
    8,442.90x = 12,661.92 × 3,247.56
  4. Step 4: Simplify right side
    8,442.90x = 41,120,344.92
  5. Step 5: Solve for x
    x = 41,120,344.92/8,442.90
  6. Step 6: Final answer
    x = 4,870.41

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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.