Home / 11,189.48-16,786.66-3,398.90

Finding the Fourth Proportional to 11,189.48, 16,786.66 and 3,398.90

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Solution

The fourth proportional to 11,189.48, 16,786.66 and 3,398.90 is: 5,099.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,189.48 : 16,786.66 = 3,398.90 : x
  2. Step 2: Convert to fraction form
    11,189.48/16,786.66 = 3,398.90/x
  3. Step 3: Cross multiply
    11,189.48x = 16,786.66 × 3,398.90
  4. Step 4: Simplify right side
    11,189.48x = 57,056,212.14
  5. Step 5: Solve for x
    x = 57,056,212.14/11,189.48
  6. Step 6: Final answer
    x = 5,099.09

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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.