Home / 8,106.11-12,166.07-3,179.18

Finding the Fourth Proportional to 8,106.11, 12,166.07 and 3,179.18

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Solution

The fourth proportional to 8,106.11, 12,166.07 and 3,179.18 is: 4,771.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,106.11 : 12,166.07 = 3,179.18 : x
  2. Step 2: Convert to fraction form
    8,106.11/12,166.07 = 3,179.18/x
  3. Step 3: Cross multiply
    8,106.11x = 12,166.07 × 3,179.18
  4. Step 4: Simplify right side
    8,106.11x = 38,678,049.70
  5. Step 5: Solve for x
    x = 38,678,049.70/8,106.11
  6. Step 6: Final answer
    x = 4,771.47

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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.