Home / 13,378.32-20,067.72-4,144.56

Finding the Fourth Proportional to 13,378.32, 20,067.72 and 4,144.56

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Solution

The fourth proportional to 13,378.32, 20,067.72 and 4,144.56 is: 6,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378.32 : 20,067.72 = 4,144.56 : x
  2. Step 2: Convert to fraction form
    13,378.32/20,067.72 = 4,144.56/x
  3. Step 3: Cross multiply
    13,378.32x = 20,067.72 × 4,144.56
  4. Step 4: Simplify right side
    13,378.32x = 83,171,869.60
  5. Step 5: Solve for x
    x = 83,171,869.60/13,378.32
  6. Step 6: Final answer
    x = 6,216.91

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1.5x scale

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.