Home / 8,147.12-12,220.27-4,456.55

Finding the Fourth Proportional to 8,147.12, 12,220.27 and 4,456.55

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Solution

The fourth proportional to 8,147.12, 12,220.27 and 4,456.55 is: 6,684.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.12 : 12,220.27 = 4,456.55 : x
  2. Step 2: Convert to fraction form
    8,147.12/12,220.27 = 4,456.55/x
  3. Step 3: Cross multiply
    8,147.12x = 12,220.27 × 4,456.55
  4. Step 4: Simplify right side
    8,147.12x = 54,460,263.68
  5. Step 5: Solve for x
    x = 54,460,263.68/8,147.12
  6. Step 6: Final answer
    x = 6,684.61

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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.