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Finding the Fourth Proportional to 12,188.08, 18,282.13 and 2,954.08

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Solution

The fourth proportional to 12,188.08, 18,282.13 and 2,954.08 is: 4,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,188.08 : 18,282.13 = 2,954.08 : x
  2. Step 2: Convert to fraction form
    12,188.08/18,282.13 = 2,954.08/x
  3. Step 3: Cross multiply
    12,188.08x = 18,282.13 × 2,954.08
  4. Step 4: Simplify right side
    12,188.08x = 54,006,874.59
  5. Step 5: Solve for x
    x = 54,006,874.59/12,188.08
  6. Step 6: Final answer
    x = 4,431.12

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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.