Home / 11,287.66-16,930.41-3,891.10

Finding the Fourth Proportional to 11,287.66, 16,930.41 and 3,891.10

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Solution

The fourth proportional to 11,287.66, 16,930.41 and 3,891.10 is: 5,836.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.66 : 16,930.41 = 3,891.10 : x
  2. Step 2: Convert to fraction form
    11,287.66/16,930.41 = 3,891.10/x
  3. Step 3: Cross multiply
    11,287.66x = 16,930.41 × 3,891.10
  4. Step 4: Simplify right side
    11,287.66x = 65,877,918.35
  5. Step 5: Solve for x
    x = 65,877,918.35/11,287.66
  6. Step 6: Final answer
    x = 5,836.28

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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.