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Finding the Fourth Proportional to 18,255.68, 25,190.70 and 10,297.43

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Solution

The fourth proportional to 18,255.68, 25,190.70 and 10,297.43 is: 14,209.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,255.68 : 25,190.70 = 10,297.43 : x
  2. Step 2: Convert to fraction form
    18,255.68/25,190.70 = 10,297.43/x
  3. Step 3: Cross multiply
    18,255.68x = 25,190.70 × 10,297.43
  4. Step 4: Simplify right side
    18,255.68x = 259,399,469.90
  5. Step 5: Solve for x
    x = 259,399,469.90/18,255.68
  6. Step 6: Final answer
    x = 14,209.25

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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.