Home / 12,163.09-18,245.36-3,398.01

Finding the Fourth Proportional to 12,163.09, 18,245.36 and 3,398.01

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Solution

The fourth proportional to 12,163.09, 18,245.36 and 3,398.01 is: 5,097.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.09 : 18,245.36 = 3,398.01 : x
  2. Step 2: Convert to fraction form
    12,163.09/18,245.36 = 3,398.01/x
  3. Step 3: Cross multiply
    12,163.09x = 18,245.36 × 3,398.01
  4. Step 4: Simplify right side
    12,163.09x = 61,997,915.73
  5. Step 5: Solve for x
    x = 61,997,915.73/12,163.09
  6. Step 6: Final answer
    x = 5,097.22

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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.