Home / 18,066.75-27,099.61-4,919.23

Finding the Fourth Proportional to 18,066.75, 27,099.61 and 4,919.23

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Solution

The fourth proportional to 18,066.75, 27,099.61 and 4,919.23 is: 7,378.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,066.75 : 27,099.61 = 4,919.23 : x
  2. Step 2: Convert to fraction form
    18,066.75/27,099.61 = 4,919.23/x
  3. Step 3: Cross multiply
    18,066.75x = 27,099.61 × 4,919.23
  4. Step 4: Simplify right side
    18,066.75x = 133,309,189.90
  5. Step 5: Solve for x
    x = 133,309,189.90/18,066.75
  6. Step 6: Final answer
    x = 7,378.71

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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.