Home / 8,110.41-12,168.80-3,179.21

Finding the Fourth Proportional to 8,110.41, 12,168.80 and 3,179.21

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Solution

The fourth proportional to 8,110.41, 12,168.80 and 3,179.21 is: 4,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.41 : 12,168.80 = 3,179.21 : x
  2. Step 2: Convert to fraction form
    8,110.41/12,168.80 = 3,179.21/x
  3. Step 3: Cross multiply
    8,110.41x = 12,168.80 × 3,179.21
  4. Step 4: Simplify right side
    8,110.41x = 38,687,093.91
  5. Step 5: Solve for x
    x = 38,687,093.91/8,110.41
  6. Step 6: Final answer
    x = 4,770.05

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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.