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Finding the Fourth Proportional to 17,671.22, 26,519.28 and 8,311.70

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Solution

The fourth proportional to 17,671.22, 26,519.28 and 8,311.70 is: 12,473.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,671.22 : 26,519.28 = 8,311.70 : x
  2. Step 2: Convert to fraction form
    17,671.22/26,519.28 = 8,311.70/x
  3. Step 3: Cross multiply
    17,671.22x = 26,519.28 × 8,311.70
  4. Step 4: Simplify right side
    17,671.22x = 220,420,299.58
  5. Step 5: Solve for x
    x = 220,420,299.58/17,671.22
  6. Step 6: Final answer
    x = 12,473.41

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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.