Home / 11,121.14-16,679.21-3,223.64

Finding the Fourth Proportional to 11,121.14, 16,679.21 and 3,223.64

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Solution

The fourth proportional to 11,121.14, 16,679.21 and 3,223.64 is: 4,834.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.14 : 16,679.21 = 3,223.64 : x
  2. Step 2: Convert to fraction form
    11,121.14/16,679.21 = 3,223.64/x
  3. Step 3: Cross multiply
    11,121.14x = 16,679.21 × 3,223.64
  4. Step 4: Simplify right side
    11,121.14x = 53,767,669.01
  5. Step 5: Solve for x
    x = 53,767,669.01/11,121.14
  6. Step 6: Final answer
    x = 4,834.73

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1.5x scale

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.