Home / 10,400.30-15,601.91-3,378.06

Finding the Fourth Proportional to 10,400.30, 15,601.91 and 3,378.06

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Solution

The fourth proportional to 10,400.30, 15,601.91 and 3,378.06 is: 5,067.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,400.30 : 15,601.91 = 3,378.06 : x
  2. Step 2: Convert to fraction form
    10,400.30/15,601.91 = 3,378.06/x
  3. Step 3: Cross multiply
    10,400.30x = 15,601.91 × 3,378.06
  4. Step 4: Simplify right side
    10,400.30x = 52,704,198.80
  5. Step 5: Solve for x
    x = 52,704,198.80/10,400.30
  6. Step 6: Final answer
    x = 5,067.57

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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.