Home / 12,372.48-18,651.24-11,321.68

Finding the Fourth Proportional to 12,372.48, 18,651.24 and 11,321.68

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Solution

The fourth proportional to 12,372.48, 18,651.24 and 11,321.68 is: 17,067.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,372.48 : 18,651.24 = 11,321.68 : x
  2. Step 2: Convert to fraction form
    12,372.48/18,651.24 = 11,321.68/x
  3. Step 3: Cross multiply
    12,372.48x = 18,651.24 × 11,321.68
  4. Step 4: Simplify right side
    12,372.48x = 211,163,370.88
  5. Step 5: Solve for x
    x = 211,163,370.88/12,372.48
  6. Step 6: Final answer
    x = 17,067.18

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.