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Finding the Fourth Proportional to 18,759.25, 25,887.78 and 10,375.75

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Solution

The fourth proportional to 18,759.25, 25,887.78 and 10,375.75 is: 14,318.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,759.25 : 25,887.78 = 10,375.75 : x
  2. Step 2: Convert to fraction form
    18,759.25/25,887.78 = 10,375.75/x
  3. Step 3: Cross multiply
    18,759.25x = 25,887.78 × 10,375.75
  4. Step 4: Simplify right side
    18,759.25x = 268,605,133.34
  5. Step 5: Solve for x
    x = 268,605,133.34/18,759.25
  6. Step 6: Final answer
    x = 14,318.54

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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.