Home / 8,163.78-12,237.88-2,613.54

Finding the Fourth Proportional to 8,163.78, 12,237.88 and 2,613.54

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Solution

The fourth proportional to 8,163.78, 12,237.88 and 2,613.54 is: 3,917.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.78 : 12,237.88 = 2,613.54 : x
  2. Step 2: Convert to fraction form
    8,163.78/12,237.88 = 2,613.54/x
  3. Step 3: Cross multiply
    8,163.78x = 12,237.88 × 2,613.54
  4. Step 4: Simplify right side
    8,163.78x = 31,984,188.90
  5. Step 5: Solve for x
    x = 31,984,188.90/8,163.78
  6. Step 6: Final answer
    x = 3,917.82

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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.