Home / 11,418.33-17,129.21-4,021.49

Finding the Fourth Proportional to 11,418.33, 17,129.21 and 4,021.49

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Solution

The fourth proportional to 11,418.33, 17,129.21 and 4,021.49 is: 6,032.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,418.33 : 17,129.21 = 4,021.49 : x
  2. Step 2: Convert to fraction form
    11,418.33/17,129.21 = 4,021.49/x
  3. Step 3: Cross multiply
    11,418.33x = 17,129.21 × 4,021.49
  4. Step 4: Simplify right side
    11,418.33x = 68,884,946.72
  5. Step 5: Solve for x
    x = 68,884,946.72/11,418.33
  6. Step 6: Final answer
    x = 6,032.84

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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.