Home / 8,117.35-12,166.23-3,951.12

Finding the Fourth Proportional to 8,117.35, 12,166.23 and 3,951.12

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Solution

The fourth proportional to 8,117.35, 12,166.23 and 3,951.12 is: 5,921.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.35 : 12,166.23 = 3,951.12 : x
  2. Step 2: Convert to fraction form
    8,117.35/12,166.23 = 3,951.12/x
  3. Step 3: Cross multiply
    8,117.35x = 12,166.23 × 3,951.12
  4. Step 4: Simplify right side
    8,117.35x = 48,070,209.20
  5. Step 5: Solve for x
    x = 48,070,209.20/8,117.35
  6. Step 6: Final answer
    x = 5,921.91

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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.