Home / 11,339.96-17,005.80-3,942.56

Finding the Fourth Proportional to 11,339.96, 17,005.80 and 3,942.56

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Solution

The fourth proportional to 11,339.96, 17,005.80 and 3,942.56 is: 5,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,339.96 : 17,005.80 = 3,942.56 : x
  2. Step 2: Convert to fraction form
    11,339.96/17,005.80 = 3,942.56/x
  3. Step 3: Cross multiply
    11,339.96x = 17,005.80 × 3,942.56
  4. Step 4: Simplify right side
    11,339.96x = 67,046,386.85
  5. Step 5: Solve for x
    x = 67,046,386.85/11,339.96
  6. Step 6: Final answer
    x = 5,912.40

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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.