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Finding the Fourth Proportional to 8,241.94, 12,363.48 and 3,311.57

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Solution

The fourth proportional to 8,241.94, 12,363.48 and 3,311.57 is: 4,967.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.94 : 12,363.48 = 3,311.57 : x
  2. Step 2: Convert to fraction form
    8,241.94/12,363.48 = 3,311.57/x
  3. Step 3: Cross multiply
    8,241.94x = 12,363.48 × 3,311.57
  4. Step 4: Simplify right side
    8,241.94x = 40,942,547.95
  5. Step 5: Solve for x
    x = 40,942,547.95/8,241.94
  6. Step 6: Final answer
    x = 4,967.59

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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.