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Finding the Fourth Proportional to 17,310.88, 25,969.38 and 8,545.78

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Solution

The fourth proportional to 17,310.88, 25,969.38 and 8,545.78 is: 12,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,310.88 : 25,969.38 = 8,545.78 : x
  2. Step 2: Convert to fraction form
    17,310.88/25,969.38 = 8,545.78/x
  3. Step 3: Cross multiply
    17,310.88x = 25,969.38 × 8,545.78
  4. Step 4: Simplify right side
    17,310.88x = 221,928,608.22
  5. Step 5: Solve for x
    x = 221,928,608.22/17,310.88
  6. Step 6: Final answer
    x = 12,820.18

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1.5x scale

Why These Related Problems?

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