Home / 9,121.37-13,682.05-2,195.87

Finding the Fourth Proportional to 9,121.37, 13,682.05 and 2,195.87

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Solution

The fourth proportional to 9,121.37, 13,682.05 and 2,195.87 is: 3,293.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.37 : 13,682.05 = 2,195.87 : x
  2. Step 2: Convert to fraction form
    9,121.37/13,682.05 = 2,195.87/x
  3. Step 3: Cross multiply
    9,121.37x = 13,682.05 × 2,195.87
  4. Step 4: Simplify right side
    9,121.37x = 30,044,003.13
  5. Step 5: Solve for x
    x = 30,044,003.13/9,121.37
  6. Step 6: Final answer
    x = 3,293.80

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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.