Home / 11,917.45-17,882.25-4,902.85

Finding the Fourth Proportional to 11,917.45, 17,882.25 and 4,902.85

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Solution

The fourth proportional to 11,917.45, 17,882.25 and 4,902.85 is: 7,356.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.45 : 17,882.25 = 4,902.85 : x
  2. Step 2: Convert to fraction form
    11,917.45/17,882.25 = 4,902.85/x
  3. Step 3: Cross multiply
    11,917.45x = 17,882.25 × 4,902.85
  4. Step 4: Simplify right side
    11,917.45x = 87,673,989.41
  5. Step 5: Solve for x
    x = 87,673,989.41/11,917.45
  6. Step 6: Final answer
    x = 7,356.77

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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.