Home / 8,241.32-12,363.54-3,311.35

Finding the Fourth Proportional to 8,241.32, 12,363.54 and 3,311.35

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Solution

The fourth proportional to 8,241.32, 12,363.54 and 3,311.35 is: 4,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.32 : 12,363.54 = 3,311.35 : x
  2. Step 2: Convert to fraction form
    8,241.32/12,363.54 = 3,311.35/x
  3. Step 3: Cross multiply
    8,241.32x = 12,363.54 × 3,311.35
  4. Step 4: Simplify right side
    8,241.32x = 40,940,008.18
  5. Step 5: Solve for x
    x = 40,940,008.18/8,241.32
  6. Step 6: Final answer
    x = 4,967.65

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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.