Home / 10,399.87-15,598.09-3,378.92

Finding the Fourth Proportional to 10,399.87, 15,598.09 and 3,378.92

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Solution

The fourth proportional to 10,399.87, 15,598.09 and 3,378.92 is: 5,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,399.87 : 15,598.09 = 3,378.92 : x
  2. Step 2: Convert to fraction form
    10,399.87/15,598.09 = 3,378.92/x
  3. Step 3: Cross multiply
    10,399.87x = 15,598.09 × 3,378.92
  4. Step 4: Simplify right side
    10,399.87x = 52,704,634.00
  5. Step 5: Solve for x
    x = 52,704,634.00/10,399.87
  6. Step 6: Final answer
    x = 5,067.82

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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.