Home / 11,837.72-17,764.50-4,912.22

Finding the Fourth Proportional to 11,837.72, 17,764.50 and 4,912.22

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Solution

The fourth proportional to 11,837.72, 17,764.50 and 4,912.22 is: 7,371.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,837.72 : 17,764.50 = 4,912.22 : x
  2. Step 2: Convert to fraction form
    11,837.72/17,764.50 = 4,912.22/x
  3. Step 3: Cross multiply
    11,837.72x = 17,764.50 × 4,912.22
  4. Step 4: Simplify right side
    11,837.72x = 87,263,132.19
  5. Step 5: Solve for x
    x = 87,263,132.19/11,837.72
  6. Step 6: Final answer
    x = 7,371.62

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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.