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Finding the Fourth Proportional to 16,865.10, 25,275.78 and 11,310.12

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Solution

The fourth proportional to 16,865.10, 25,275.78 and 11,310.12 is: 16,950.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,865.10 : 25,275.78 = 11,310.12 : x
  2. Step 2: Convert to fraction form
    16,865.10/25,275.78 = 11,310.12/x
  3. Step 3: Cross multiply
    16,865.10x = 25,275.78 × 11,310.12
  4. Step 4: Simplify right side
    16,865.10x = 285,872,104.89
  5. Step 5: Solve for x
    x = 285,872,104.89/16,865.10
  6. Step 6: Final answer
    x = 16,950.51

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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.