Home / 9,378.72-14,067.36-3,906.72

Finding the Fourth Proportional to 9,378.72, 14,067.36 and 3,906.72

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Solution

The fourth proportional to 9,378.72, 14,067.36 and 3,906.72 is: 5,859.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,378.72 : 14,067.36 = 3,906.72 : x
  2. Step 2: Convert to fraction form
    9,378.72/14,067.36 = 3,906.72/x
  3. Step 3: Cross multiply
    9,378.72x = 14,067.36 × 3,906.72
  4. Step 4: Simplify right side
    9,378.72x = 54,957,236.66
  5. Step 5: Solve for x
    x = 54,957,236.66/9,378.72
  6. Step 6: Final answer
    x = 5,859.78

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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.