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Finding the Fourth Proportional to 16,857.90, 25,286.85 and 5,763.60

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Solution

The fourth proportional to 16,857.90, 25,286.85 and 5,763.60 is: 8,645.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.90 : 25,286.85 = 5,763.60 : x
  2. Step 2: Convert to fraction form
    16,857.90/25,286.85 = 5,763.60/x
  3. Step 3: Cross multiply
    16,857.90x = 25,286.85 × 5,763.60
  4. Step 4: Simplify right side
    16,857.90x = 145,743,288.66
  5. Step 5: Solve for x
    x = 145,743,288.66/16,857.90
  6. Step 6: Final answer
    x = 8,645.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.