Home / 18,212.28-27,318.68-5,064.36

Finding the Fourth Proportional to 18,212.28, 27,318.68 and 5,064.36

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Solution

The fourth proportional to 18,212.28, 27,318.68 and 5,064.36 is: 7,596.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.28 : 27,318.68 = 5,064.36 : x
  2. Step 2: Convert to fraction form
    18,212.28/27,318.68 = 5,064.36/x
  3. Step 3: Cross multiply
    18,212.28x = 27,318.68 × 5,064.36
  4. Step 4: Simplify right side
    18,212.28x = 138,351,630.24
  5. Step 5: Solve for x
    x = 138,351,630.24/18,212.28
  6. Step 6: Final answer
    x = 7,596.61

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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.