Home / 12,131.17-18,196.77-3,366.09

Finding the Fourth Proportional to 12,131.17, 18,196.77 and 3,366.09

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Solution

The fourth proportional to 12,131.17, 18,196.77 and 3,366.09 is: 5,049.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,131.17 : 18,196.77 = 3,366.09 : x
  2. Step 2: Convert to fraction form
    12,131.17/18,196.77 = 3,366.09/x
  3. Step 3: Cross multiply
    12,131.17x = 18,196.77 × 3,366.09
  4. Step 4: Simplify right side
    12,131.17x = 61,251,965.53
  5. Step 5: Solve for x
    x = 61,251,965.53/12,131.17
  6. Step 6: Final answer
    x = 5,049.14

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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.