Home / 13,229.12-18,256.38-8,514.92

Finding the Fourth Proportional to 13,229.12, 18,256.38 and 8,514.92

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Solution

The fourth proportional to 13,229.12, 18,256.38 and 8,514.92 is: 11,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,229.12 : 18,256.38 = 8,514.92 : x
  2. Step 2: Convert to fraction form
    13,229.12/18,256.38 = 8,514.92/x
  3. Step 3: Cross multiply
    13,229.12x = 18,256.38 × 8,514.92
  4. Step 4: Simplify right side
    13,229.12x = 155,451,615.19
  5. Step 5: Solve for x
    x = 155,451,615.19/13,229.12
  6. Step 6: Final answer
    x = 11,750.71

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Half scale
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Double scale
Find fourth proportional to 13,230.12, 18,257.76 and 8,515.92
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.