Home / 11,840.08-17,761.09-3,942.31

Finding the Fourth Proportional to 11,840.08, 17,761.09 and 3,942.31

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Solution

The fourth proportional to 11,840.08, 17,761.09 and 3,942.31 is: 5,913.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,840.08 : 17,761.09 = 3,942.31 : x
  2. Step 2: Convert to fraction form
    11,840.08/17,761.09 = 3,942.31/x
  3. Step 3: Cross multiply
    11,840.08x = 17,761.09 × 3,942.31
  4. Step 4: Simplify right side
    11,840.08x = 70,019,722.72
  5. Step 5: Solve for x
    x = 70,019,722.72/11,840.08
  6. Step 6: Final answer
    x = 5,913.79

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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.