Home / 12,149.18-18,223.77-6,951.44

Finding the Fourth Proportional to 12,149.18, 18,223.77 and 6,951.44

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Solution

The fourth proportional to 12,149.18, 18,223.77 and 6,951.44 is: 10,427.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.18 : 18,223.77 = 6,951.44 : x
  2. Step 2: Convert to fraction form
    12,149.18/18,223.77 = 6,951.44/x
  3. Step 3: Cross multiply
    12,149.18x = 18,223.77 × 6,951.44
  4. Step 4: Simplify right side
    12,149.18x = 126,681,443.73
  5. Step 5: Solve for x
    x = 126,681,443.73/12,149.18
  6. Step 6: Final answer
    x = 10,427.16

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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.