Home / 8,132.75-12,198.90-2,586.43

Finding the Fourth Proportional to 8,132.75, 12,198.90 and 2,586.43

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Solution

The fourth proportional to 8,132.75, 12,198.90 and 2,586.43 is: 3,879.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,132.75 : 12,198.90 = 2,586.43 : x
  2. Step 2: Convert to fraction form
    8,132.75/12,198.90 = 2,586.43/x
  3. Step 3: Cross multiply
    8,132.75x = 12,198.90 × 2,586.43
  4. Step 4: Simplify right side
    8,132.75x = 31,551,625.87
  5. Step 5: Solve for x
    x = 31,551,625.87/8,132.75
  6. Step 6: Final answer
    x = 3,879.57

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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.