Home / 15,782.44-21,778.50-9,067.72

Finding the Fourth Proportional to 15,782.44, 21,778.50 and 9,067.72

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Solution

The fourth proportional to 15,782.44, 21,778.50 and 9,067.72 is: 12,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,782.44 : 21,778.50 = 9,067.72 : x
  2. Step 2: Convert to fraction form
    15,782.44/21,778.50 = 9,067.72/x
  3. Step 3: Cross multiply
    15,782.44x = 21,778.50 × 9,067.72
  4. Step 4: Simplify right side
    15,782.44x = 197,481,340.02
  5. Step 5: Solve for x
    x = 197,481,340.02/15,782.44
  6. Step 6: Final answer
    x = 12,512.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.