Home / 11,112.88-16,670.68-3,722.64

Finding the Fourth Proportional to 11,112.88, 16,670.68 and 3,722.64

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Solution

The fourth proportional to 11,112.88, 16,670.68 and 3,722.64 is: 5,584.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.88 : 16,670.68 = 3,722.64 : x
  2. Step 2: Convert to fraction form
    11,112.88/16,670.68 = 3,722.64/x
  3. Step 3: Cross multiply
    11,112.88x = 16,670.68 × 3,722.64
  4. Step 4: Simplify right side
    11,112.88x = 62,058,940.20
  5. Step 5: Solve for x
    x = 62,058,940.20/11,112.88
  6. Step 6: Final answer
    x = 5,584.42

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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.