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Finding the Fourth Proportional to 18,171.92, 25,076.00 and 10,215.34

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Solution

The fourth proportional to 18,171.92, 25,076.00 and 10,215.34 is: 14,096.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.92 : 25,076.00 = 10,215.34 : x
  2. Step 2: Convert to fraction form
    18,171.92/25,076.00 = 10,215.34/x
  3. Step 3: Cross multiply
    18,171.92x = 25,076.00 × 10,215.34
  4. Step 4: Simplify right side
    18,171.92x = 256,159,828.69
  5. Step 5: Solve for x
    x = 256,159,828.69/18,171.92
  6. Step 6: Final answer
    x = 14,096.46

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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.