Home / 11,971.88-17,939.19-4,572.30

Finding the Fourth Proportional to 11,971.88, 17,939.19 and 4,572.30

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Solution

The fourth proportional to 11,971.88, 17,939.19 and 4,572.30 is: 6,851.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.88 : 17,939.19 = 4,572.30 : x
  2. Step 2: Convert to fraction form
    11,971.88/17,939.19 = 4,572.30/x
  3. Step 3: Cross multiply
    11,971.88x = 17,939.19 × 4,572.30
  4. Step 4: Simplify right side
    11,971.88x = 82,023,358.44
  5. Step 5: Solve for x
    x = 82,023,358.44/11,971.88
  6. Step 6: Final answer
    x = 6,851.33

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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.