Home / 11,747.78-17,623.30-6,819.74

Finding the Fourth Proportional to 11,747.78, 17,623.30 and 6,819.74

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Solution

The fourth proportional to 11,747.78, 17,623.30 and 6,819.74 is: 10,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.78 : 17,623.30 = 6,819.74 : x
  2. Step 2: Convert to fraction form
    11,747.78/17,623.30 = 6,819.74/x
  3. Step 3: Cross multiply
    11,747.78x = 17,623.30 × 6,819.74
  4. Step 4: Simplify right side
    11,747.78x = 120,186,323.94
  5. Step 5: Solve for x
    x = 120,186,323.94/11,747.78
  6. Step 6: Final answer
    x = 10,230.56

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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.