Home / 12,542.92-17,317.06-8,074.42

Finding the Fourth Proportional to 12,542.92, 17,317.06 and 8,074.42

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Solution

The fourth proportional to 12,542.92, 17,317.06 and 8,074.42 is: 11,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.92 : 17,317.06 = 8,074.42 : x
  2. Step 2: Convert to fraction form
    12,542.92/17,317.06 = 8,074.42/x
  3. Step 3: Cross multiply
    12,542.92x = 17,317.06 × 8,074.42
  4. Step 4: Simplify right side
    12,542.92x = 139,825,152.13
  5. Step 5: Solve for x
    x = 139,825,152.13/12,542.92
  6. Step 6: Final answer
    x = 11,147.74

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.