Home / 11,249.79-16,858.97-5,324.39

Finding the Fourth Proportional to 11,249.79, 16,858.97 and 5,324.39

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Solution

The fourth proportional to 11,249.79, 16,858.97 and 5,324.39 is: 7,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,249.79 : 16,858.97 = 5,324.39 : x
  2. Step 2: Convert to fraction form
    11,249.79/16,858.97 = 5,324.39/x
  3. Step 3: Cross multiply
    11,249.79x = 16,858.97 × 5,324.39
  4. Step 4: Simplify right side
    11,249.79x = 89,763,731.28
  5. Step 5: Solve for x
    x = 89,763,731.28/11,249.79
  6. Step 6: Final answer
    x = 7,979.15

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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.