Home / 8,261.86-12,388.53-3,330.17

Finding the Fourth Proportional to 8,261.86, 12,388.53 and 3,330.17

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Solution

The fourth proportional to 8,261.86, 12,388.53 and 3,330.17 is: 4,993.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.86 : 12,388.53 = 3,330.17 : x
  2. Step 2: Convert to fraction form
    8,261.86/12,388.53 = 3,330.17/x
  3. Step 3: Cross multiply
    8,261.86x = 12,388.53 × 3,330.17
  4. Step 4: Simplify right side
    8,261.86x = 41,255,910.95
  5. Step 5: Solve for x
    x = 41,255,910.95/8,261.86
  6. Step 6: Final answer
    x = 4,993.54

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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.