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Finding the Fourth Proportional to 18,246.31, 25,179.88 and 10,288.54

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Solution

The fourth proportional to 18,246.31, 25,179.88 and 10,288.54 is: 14,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,246.31 : 25,179.88 = 10,288.54 : x
  2. Step 2: Convert to fraction form
    18,246.31/25,179.88 = 10,288.54/x
  3. Step 3: Cross multiply
    18,246.31x = 25,179.88 × 10,288.54
  4. Step 4: Simplify right side
    18,246.31x = 259,064,085.98
  5. Step 5: Solve for x
    x = 259,064,085.98/18,246.31
  6. Step 6: Final answer
    x = 14,198.16

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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.