Home / 11,291.76-16,939.98-3,393.95

Finding the Fourth Proportional to 11,291.76, 16,939.98 and 3,393.95

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Solution

The fourth proportional to 11,291.76, 16,939.98 and 3,393.95 is: 5,091.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,291.76 : 16,939.98 = 3,393.95 : x
  2. Step 2: Convert to fraction form
    11,291.76/16,939.98 = 3,393.95/x
  3. Step 3: Cross multiply
    11,291.76x = 16,939.98 × 3,393.95
  4. Step 4: Simplify right side
    11,291.76x = 57,493,445.12
  5. Step 5: Solve for x
    x = 57,493,445.12/11,291.76
  6. Step 6: Final answer
    x = 5,091.63

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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.