Home / 8,192.79-12,290.46-3,512.73

Finding the Fourth Proportional to 8,192.79, 12,290.46 and 3,512.73

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Solution

The fourth proportional to 8,192.79, 12,290.46 and 3,512.73 is: 5,269.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,192.79 : 12,290.46 = 3,512.73 : x
  2. Step 2: Convert to fraction form
    8,192.79/12,290.46 = 3,512.73/x
  3. Step 3: Cross multiply
    8,192.79x = 12,290.46 × 3,512.73
  4. Step 4: Simplify right side
    8,192.79x = 43,173,067.56
  5. Step 5: Solve for x
    x = 43,173,067.56/8,192.79
  6. Step 6: Final answer
    x = 5,269.64

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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.