Home / 18,109.11-27,163.68-4,961.58

Finding the Fourth Proportional to 18,109.11, 27,163.68 and 4,961.58

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Solution

The fourth proportional to 18,109.11, 27,163.68 and 4,961.58 is: 7,442.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,109.11 : 27,163.68 = 4,961.58 : x
  2. Step 2: Convert to fraction form
    18,109.11/27,163.68 = 4,961.58/x
  3. Step 3: Cross multiply
    18,109.11x = 27,163.68 × 4,961.58
  4. Step 4: Simplify right side
    18,109.11x = 134,774,771.41
  5. Step 5: Solve for x
    x = 134,774,771.41/18,109.11
  6. Step 6: Final answer
    x = 7,442.37

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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.