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Finding the Fourth Proportional to 17,013.80, 25,520.70 and 8,265.80

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Solution

The fourth proportional to 17,013.80, 25,520.70 and 8,265.80 is: 12,398.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,013.80 : 25,520.70 = 8,265.80 : x
  2. Step 2: Convert to fraction form
    17,013.80/25,520.70 = 8,265.80/x
  3. Step 3: Cross multiply
    17,013.80x = 25,520.70 × 8,265.80
  4. Step 4: Simplify right side
    17,013.80x = 210,949,002.06
  5. Step 5: Solve for x
    x = 210,949,002.06/17,013.80
  6. Step 6: Final answer
    x = 12,398.70

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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.