Home / 11,517.78-15,894.34-6,481.99

Finding the Fourth Proportional to 11,517.78, 15,894.34 and 6,481.99

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Solution

The fourth proportional to 11,517.78, 15,894.34 and 6,481.99 is: 8,945.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,517.78 : 15,894.34 = 6,481.99 : x
  2. Step 2: Convert to fraction form
    11,517.78/15,894.34 = 6,481.99/x
  3. Step 3: Cross multiply
    11,517.78x = 15,894.34 × 6,481.99
  4. Step 4: Simplify right side
    11,517.78x = 103,026,920.53
  5. Step 5: Solve for x
    x = 103,026,920.53/11,517.78
  6. Step 6: Final answer
    x = 8,945.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.