Home / 11,436.39-17,156.52-3,939.66

Finding the Fourth Proportional to 11,436.39, 17,156.52 and 3,939.66

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Solution

The fourth proportional to 11,436.39, 17,156.52 and 3,939.66 is: 5,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.39 : 17,156.52 = 3,939.66 : x
  2. Step 2: Convert to fraction form
    11,436.39/17,156.52 = 3,939.66/x
  3. Step 3: Cross multiply
    11,436.39x = 17,156.52 × 3,939.66
  4. Step 4: Simplify right side
    11,436.39x = 67,590,855.58
  5. Step 5: Solve for x
    x = 67,590,855.58/11,436.39
  6. Step 6: Final answer
    x = 5,910.16

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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.