Home / 8,186.38-12,280.88-3,256.06

Finding the Fourth Proportional to 8,186.38, 12,280.88 and 3,256.06

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Solution

The fourth proportional to 8,186.38, 12,280.88 and 3,256.06 is: 4,884.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.38 : 12,280.88 = 3,256.06 : x
  2. Step 2: Convert to fraction form
    8,186.38/12,280.88 = 3,256.06/x
  3. Step 3: Cross multiply
    8,186.38x = 12,280.88 × 3,256.06
  4. Step 4: Simplify right side
    8,186.38x = 39,987,282.13
  5. Step 5: Solve for x
    x = 39,987,282.13/8,186.38
  6. Step 6: Final answer
    x = 4,884.61

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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.