Home / 11,187.82-16,782.16-3,396.43

Finding the Fourth Proportional to 11,187.82, 16,782.16 and 3,396.43

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Solution

The fourth proportional to 11,187.82, 16,782.16 and 3,396.43 is: 5,094.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.82 : 16,782.16 = 3,396.43 : x
  2. Step 2: Convert to fraction form
    11,187.82/16,782.16 = 3,396.43/x
  3. Step 3: Cross multiply
    11,187.82x = 16,782.16 × 3,396.43
  4. Step 4: Simplify right side
    11,187.82x = 56,999,431.69
  5. Step 5: Solve for x
    x = 56,999,431.69/11,187.82
  6. Step 6: Final answer
    x = 5,094.78

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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.