Home / 11,379.33-17,045.91-6,438.56

Finding the Fourth Proportional to 11,379.33, 17,045.91 and 6,438.56

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Solution

The fourth proportional to 11,379.33, 17,045.91 and 6,438.56 is: 9,644.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,379.33 : 17,045.91 = 6,438.56 : x
  2. Step 2: Convert to fraction form
    11,379.33/17,045.91 = 6,438.56/x
  3. Step 3: Cross multiply
    11,379.33x = 17,045.91 × 6,438.56
  4. Step 4: Simplify right side
    11,379.33x = 109,751,029.06
  5. Step 5: Solve for x
    x = 109,751,029.06/11,379.33
  6. Step 6: Final answer
    x = 9,644.77

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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.