Home / 8,186.10-12,277.95-2,638.73

Finding the Fourth Proportional to 8,186.10, 12,277.95 and 2,638.73

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Solution

The fourth proportional to 8,186.10, 12,277.95 and 2,638.73 is: 3,957.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.10 : 12,277.95 = 2,638.73 : x
  2. Step 2: Convert to fraction form
    8,186.10/12,277.95 = 2,638.73/x
  3. Step 3: Cross multiply
    8,186.10x = 12,277.95 × 2,638.73
  4. Step 4: Simplify right side
    8,186.10x = 32,398,195.00
  5. Step 5: Solve for x
    x = 32,398,195.00/8,186.10
  6. Step 6: Final answer
    x = 3,957.71

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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.