Home / 8,241.50-12,363.80-3,311.53

Finding the Fourth Proportional to 8,241.50, 12,363.80 and 3,311.53

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Solution

The fourth proportional to 8,241.50, 12,363.80 and 3,311.53 is: 4,967.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.50 : 12,363.80 = 3,311.53 : x
  2. Step 2: Convert to fraction form
    8,241.50/12,363.80 = 3,311.53/x
  3. Step 3: Cross multiply
    8,241.50x = 12,363.80 × 3,311.53
  4. Step 4: Simplify right side
    8,241.50x = 40,943,094.61
  5. Step 5: Solve for x
    x = 40,943,094.61/8,241.50
  6. Step 6: Final answer
    x = 4,967.92

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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.