Home / 9,121.05-13,672.53-3,857.49

Finding the Fourth Proportional to 9,121.05, 13,672.53 and 3,857.49

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Solution

The fourth proportional to 9,121.05, 13,672.53 and 3,857.49 is: 5,782.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,121.05 : 13,672.53 = 3,857.49 : x
  2. Step 2: Convert to fraction form
    9,121.05/13,672.53 = 3,857.49/x
  3. Step 3: Cross multiply
    9,121.05x = 13,672.53 × 3,857.49
  4. Step 4: Simplify right side
    9,121.05x = 52,741,647.75
  5. Step 5: Solve for x
    x = 52,741,647.75/9,121.05
  6. Step 6: Final answer
    x = 5,782.41

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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.