Home / 12,144.91-18,217.37-9,375.63

Finding the Fourth Proportional to 12,144.91, 18,217.37 and 9,375.63

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Solution

The fourth proportional to 12,144.91, 18,217.37 and 9,375.63 is: 14,063.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.91 : 18,217.37 = 9,375.63 : x
  2. Step 2: Convert to fraction form
    12,144.91/18,217.37 = 9,375.63/x
  3. Step 3: Cross multiply
    12,144.91x = 18,217.37 × 9,375.63
  4. Step 4: Simplify right side
    12,144.91x = 170,799,258.24
  5. Step 5: Solve for x
    x = 170,799,258.24/12,144.91
  6. Step 6: Final answer
    x = 14,063.44

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Half scale
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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.