Home / 11,115.03-16,644.33-6,669.90

Finding the Fourth Proportional to 11,115.03, 16,644.33 and 6,669.90

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Solution

The fourth proportional to 11,115.03, 16,644.33 and 6,669.90 is: 9,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.03 : 16,644.33 = 6,669.90 : x
  2. Step 2: Convert to fraction form
    11,115.03/16,644.33 = 6,669.90/x
  3. Step 3: Cross multiply
    11,115.03x = 16,644.33 × 6,669.90
  4. Step 4: Simplify right side
    11,115.03x = 111,016,016.67
  5. Step 5: Solve for x
    x = 111,016,016.67/11,115.03
  6. Step 6: Final answer
    x = 9,987.92

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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.