Home / 8,085.26-12,125.52-3,153.80

Finding the Fourth Proportional to 8,085.26, 12,125.52 and 3,153.80

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Solution

The fourth proportional to 8,085.26, 12,125.52 and 3,153.80 is: 4,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.26 : 12,125.52 = 3,153.80 : x
  2. Step 2: Convert to fraction form
    8,085.26/12,125.52 = 3,153.80/x
  3. Step 3: Cross multiply
    8,085.26x = 12,125.52 × 3,153.80
  4. Step 4: Simplify right side
    8,085.26x = 38,241,464.98
  5. Step 5: Solve for x
    x = 38,241,464.98/8,085.26
  6. Step 6: Final answer
    x = 4,729.78

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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.