Home / 18,825.92-28,238.06-4,786.53

Finding the Fourth Proportional to 18,825.92, 28,238.06 and 4,786.53

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Solution

The fourth proportional to 18,825.92, 28,238.06 and 4,786.53 is: 7,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,825.92 : 28,238.06 = 4,786.53 : x
  2. Step 2: Convert to fraction form
    18,825.92/28,238.06 = 4,786.53/x
  3. Step 3: Cross multiply
    18,825.92x = 28,238.06 × 4,786.53
  4. Step 4: Simplify right side
    18,825.92x = 135,162,297.40
  5. Step 5: Solve for x
    x = 135,162,297.40/18,825.92
  6. Step 6: Final answer
    x = 7,179.59

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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.