Home / 8,326.24-12,489.12-2,170.24

Finding the Fourth Proportional to 8,326.24, 12,489.12 and 2,170.24

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Solution

The fourth proportional to 8,326.24, 12,489.12 and 2,170.24 is: 3,255.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,326.24 : 12,489.12 = 2,170.24 : x
  2. Step 2: Convert to fraction form
    8,326.24/12,489.12 = 2,170.24/x
  3. Step 3: Cross multiply
    8,326.24x = 12,489.12 × 2,170.24
  4. Step 4: Simplify right side
    8,326.24x = 27,104,387.79
  5. Step 5: Solve for x
    x = 27,104,387.79/8,326.24
  6. Step 6: Final answer
    x = 3,255.30

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Double scale
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Similar ratio
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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.