Home / 11,788.89-17,679.54-3,889.57

Finding the Fourth Proportional to 11,788.89, 17,679.54 and 3,889.57

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Solution

The fourth proportional to 11,788.89, 17,679.54 and 3,889.57 is: 5,833.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,788.89 : 17,679.54 = 3,889.57 : x
  2. Step 2: Convert to fraction form
    11,788.89/17,679.54 = 3,889.57/x
  3. Step 3: Cross multiply
    11,788.89x = 17,679.54 × 3,889.57
  4. Step 4: Simplify right side
    11,788.89x = 68,765,800.99
  5. Step 5: Solve for x
    x = 68,765,800.99/11,788.89
  6. Step 6: Final answer
    x = 5,833.10

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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.