Home / 11,221.71-16,833.26-4,648.41

Finding the Fourth Proportional to 11,221.71, 16,833.26 and 4,648.41

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Solution

The fourth proportional to 11,221.71, 16,833.26 and 4,648.41 is: 6,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.71 : 16,833.26 = 4,648.41 : x
  2. Step 2: Convert to fraction form
    11,221.71/16,833.26 = 4,648.41/x
  3. Step 3: Cross multiply
    11,221.71x = 16,833.26 × 4,648.41
  4. Step 4: Simplify right side
    11,221.71x = 78,247,870.87
  5. Step 5: Solve for x
    x = 78,247,870.87/11,221.71
  6. Step 6: Final answer
    x = 6,972.90

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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.