Home / 8,131.17-12,197.34-3,974.64

Finding the Fourth Proportional to 8,131.17, 12,197.34 and 3,974.64

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Solution

The fourth proportional to 8,131.17, 12,197.34 and 3,974.64 is: 5,962.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.17 : 12,197.34 = 3,974.64 : x
  2. Step 2: Convert to fraction form
    8,131.17/12,197.34 = 3,974.64/x
  3. Step 3: Cross multiply
    8,131.17x = 12,197.34 × 3,974.64
  4. Step 4: Simplify right side
    8,131.17x = 48,480,035.46
  5. Step 5: Solve for x
    x = 48,480,035.46/8,131.17
  6. Step 6: Final answer
    x = 5,962.25

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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.