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Finding the Fourth Proportional to 16,290, 22,480.20 and 8,838

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Solution

The fourth proportional to 16,290, 22,480.20 and 8,838 is: 12,196.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290 : 22,480.20 = 8,838 : x
  2. Step 2: Convert to fraction form
    16,290/22,480.20 = 8,838/x
  3. Step 3: Cross multiply
    16,290x = 22,480.20 × 8,838
  4. Step 4: Simplify right side
    16,290x = 198,680,007.60
  5. Step 5: Solve for x
    x = 198,680,007.60/16,290
  6. Step 6: Final answer
    x = 12,196.44

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.