Home / 8,456.33-12,687.20-4,074.23

Finding the Fourth Proportional to 8,456.33, 12,687.20 and 4,074.23

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Solution

The fourth proportional to 8,456.33, 12,687.20 and 4,074.23 is: 6,112.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.33 : 12,687.20 = 4,074.23 : x
  2. Step 2: Convert to fraction form
    8,456.33/12,687.20 = 4,074.23/x
  3. Step 3: Cross multiply
    8,456.33x = 12,687.20 × 4,074.23
  4. Step 4: Simplify right side
    8,456.33x = 51,690,550.48
  5. Step 5: Solve for x
    x = 51,690,550.48/8,456.33
  6. Step 6: Final answer
    x = 6,112.65

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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.