Home / 12,441.38-17,171.34-7,137.95

Finding the Fourth Proportional to 12,441.38, 17,171.34 and 7,137.95

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Solution

The fourth proportional to 12,441.38, 17,171.34 and 7,137.95 is: 9,851.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.38 : 17,171.34 = 7,137.95 : x
  2. Step 2: Convert to fraction form
    12,441.38/17,171.34 = 7,137.95/x
  3. Step 3: Cross multiply
    12,441.38x = 17,171.34 × 7,137.95
  4. Step 4: Simplify right side
    12,441.38x = 122,568,166.35
  5. Step 5: Solve for x
    x = 122,568,166.35/12,441.38
  6. Step 6: Final answer
    x = 9,851.65

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Half scale
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Double scale
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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.