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Finding the Fourth Proportional to 18,798.62, 25,930.36 and 12,092.99

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Solution

The fourth proportional to 18,798.62, 25,930.36 and 12,092.99 is: 16,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,798.62 : 25,930.36 = 12,092.99 : x
  2. Step 2: Convert to fraction form
    18,798.62/25,930.36 = 12,092.99/x
  3. Step 3: Cross multiply
    18,798.62x = 25,930.36 × 12,092.99
  4. Step 4: Simplify right side
    18,798.62x = 313,575,584.18
  5. Step 5: Solve for x
    x = 313,575,584.18/18,798.62
  6. Step 6: Final answer
    x = 16,680.78

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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.