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Finding the Fourth Proportional to 16,880.24, 25,299.80 and 11,951.28

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Solution

The fourth proportional to 16,880.24, 25,299.80 and 11,951.28 is: 17,912.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,880.24 : 25,299.80 = 11,951.28 : x
  2. Step 2: Convert to fraction form
    16,880.24/25,299.80 = 11,951.28/x
  3. Step 3: Cross multiply
    16,880.24x = 25,299.80 × 11,951.28
  4. Step 4: Simplify right side
    16,880.24x = 302,364,993.74
  5. Step 5: Solve for x
    x = 302,364,993.74/16,880.24
  6. Step 6: Final answer
    x = 17,912.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.