Home / 8,252.36-12,378.41-3,321.87

Finding the Fourth Proportional to 8,252.36, 12,378.41 and 3,321.87

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Solution

The fourth proportional to 8,252.36, 12,378.41 and 3,321.87 is: 4,982.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,252.36 : 12,378.41 = 3,321.87 : x
  2. Step 2: Convert to fraction form
    8,252.36/12,378.41 = 3,321.87/x
  3. Step 3: Cross multiply
    8,252.36x = 12,378.41 × 3,321.87
  4. Step 4: Simplify right side
    8,252.36x = 41,119,500.62
  5. Step 5: Solve for x
    x = 41,119,500.62/8,252.36
  6. Step 6: Final answer
    x = 4,982.76

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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.