Home / 8,185.38-12,279.38-3,255.06

Finding the Fourth Proportional to 8,185.38, 12,279.38 and 3,255.06

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Solution

The fourth proportional to 8,185.38, 12,279.38 and 3,255.06 is: 4,883.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,185.38 : 12,279.38 = 3,255.06 : x
  2. Step 2: Convert to fraction form
    8,185.38/12,279.38 = 3,255.06/x
  3. Step 3: Cross multiply
    8,185.38x = 12,279.38 × 3,255.06
  4. Step 4: Simplify right side
    8,185.38x = 39,970,118.66
  5. Step 5: Solve for x
    x = 39,970,118.66/8,185.38
  6. Step 6: Final answer
    x = 4,883.11

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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.