Home / 8,131.24-12,192.54-3,200.68

Finding the Fourth Proportional to 8,131.24, 12,192.54 and 3,200.68

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Solution

The fourth proportional to 8,131.24, 12,192.54 and 3,200.68 is: 4,799.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.24 : 12,192.54 = 3,200.68 : x
  2. Step 2: Convert to fraction form
    8,131.24/12,192.54 = 3,200.68/x
  3. Step 3: Cross multiply
    8,131.24x = 12,192.54 × 3,200.68
  4. Step 4: Simplify right side
    8,131.24x = 39,024,418.93
  5. Step 5: Solve for x
    x = 39,024,418.93/8,131.24
  6. Step 6: Final answer
    x = 4,799.32

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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.