Home / 11,868.48-17,794.44-7,189.72

Finding the Fourth Proportional to 11,868.48, 17,794.44 and 7,189.72

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Solution

The fourth proportional to 11,868.48, 17,794.44 and 7,189.72 is: 10,779.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,868.48 : 17,794.44 = 7,189.72 : x
  2. Step 2: Convert to fraction form
    11,868.48/17,794.44 = 7,189.72/x
  3. Step 3: Cross multiply
    11,868.48x = 17,794.44 × 7,189.72
  4. Step 4: Simplify right side
    11,868.48x = 127,936,996.67
  5. Step 5: Solve for x
    x = 127,936,996.67/11,868.48
  6. Step 6: Final answer
    x = 10,779.56

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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.