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Finding the Fourth Proportional to 8,104.35, 12,154.68 and 2,910.21

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Solution

The fourth proportional to 8,104.35, 12,154.68 and 2,910.21 is: 4,364.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.35 : 12,154.68 = 2,910.21 : x
  2. Step 2: Convert to fraction form
    8,104.35/12,154.68 = 2,910.21/x
  3. Step 3: Cross multiply
    8,104.35x = 12,154.68 × 2,910.21
  4. Step 4: Simplify right side
    8,104.35x = 35,372,671.28
  5. Step 5: Solve for x
    x = 35,372,671.28/8,104.35
  6. Step 6: Final answer
    x = 4,364.65

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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.