Home / 18,311.25-27,467.16-5,163.96

Finding the Fourth Proportional to 18,311.25, 27,467.16 and 5,163.96

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Solution

The fourth proportional to 18,311.25, 27,467.16 and 5,163.96 is: 7,746.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,311.25 : 27,467.16 = 5,163.96 : x
  2. Step 2: Convert to fraction form
    18,311.25/27,467.16 = 5,163.96/x
  3. Step 3: Cross multiply
    18,311.25x = 27,467.16 × 5,163.96
  4. Step 4: Simplify right side
    18,311.25x = 141,839,315.55
  5. Step 5: Solve for x
    x = 141,839,315.55/18,311.25
  6. Step 6: Final answer
    x = 7,746.02

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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.