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Finding the Fourth Proportional to 18,456, 25,469.56 and 10,072.52

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Solution

The fourth proportional to 18,456, 25,469.56 and 10,072.52 is: 13,900.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456 : 25,469.56 = 10,072.52 : x
  2. Step 2: Convert to fraction form
    18,456/25,469.56 = 10,072.52/x
  3. Step 3: Cross multiply
    18,456x = 25,469.56 × 10,072.52
  4. Step 4: Simplify right side
    18,456x = 256,542,652.49
  5. Step 5: Solve for x
    x = 256,542,652.49/18,456
  6. Step 6: Final answer
    x = 13,900.23

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Why These Related Problems?

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