Home / 8,156.22-12,233.85-2,312.61

Finding the Fourth Proportional to 8,156.22, 12,233.85 and 2,312.61

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Solution

The fourth proportional to 8,156.22, 12,233.85 and 2,312.61 is: 3,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.22 : 12,233.85 = 2,312.61 : x
  2. Step 2: Convert to fraction form
    8,156.22/12,233.85 = 2,312.61/x
  3. Step 3: Cross multiply
    8,156.22x = 12,233.85 × 2,312.61
  4. Step 4: Simplify right side
    8,156.22x = 28,292,123.85
  5. Step 5: Solve for x
    x = 28,292,123.85/8,156.22
  6. Step 6: Final answer
    x = 3,468.78

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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.