Home / 8,644.20-12,965.72-3,378.24

Finding the Fourth Proportional to 8,644.20, 12,965.72 and 3,378.24

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Solution

The fourth proportional to 8,644.20, 12,965.72 and 3,378.24 is: 5,067.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,644.20 : 12,965.72 = 3,378.24 : x
  2. Step 2: Convert to fraction form
    8,644.20/12,965.72 = 3,378.24/x
  3. Step 3: Cross multiply
    8,644.20x = 12,965.72 × 3,378.24
  4. Step 4: Simplify right side
    8,644.20x = 43,801,313.93
  5. Step 5: Solve for x
    x = 43,801,313.93/8,644.20
  6. Step 6: Final answer
    x = 5,067.13

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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.