Home / 8,429.24-12,644.20-3,163.70

Finding the Fourth Proportional to 8,429.24, 12,644.20 and 3,163.70

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Solution

The fourth proportional to 8,429.24, 12,644.20 and 3,163.70 is: 4,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.24 : 12,644.20 = 3,163.70 : x
  2. Step 2: Convert to fraction form
    8,429.24/12,644.20 = 3,163.70/x
  3. Step 3: Cross multiply
    8,429.24x = 12,644.20 × 3,163.70
  4. Step 4: Simplify right side
    8,429.24x = 40,002,455.54
  5. Step 5: Solve for x
    x = 40,002,455.54/8,429.24
  6. Step 6: Final answer
    x = 4,745.68

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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.