Home / 18,399.86-27,600.67-5,253.14

Finding the Fourth Proportional to 18,399.86, 27,600.67 and 5,253.14

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Solution

The fourth proportional to 18,399.86, 27,600.67 and 5,253.14 is: 7,879.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.86 : 27,600.67 = 5,253.14 : x
  2. Step 2: Convert to fraction form
    18,399.86/27,600.67 = 5,253.14/x
  3. Step 3: Cross multiply
    18,399.86x = 27,600.67 × 5,253.14
  4. Step 4: Simplify right side
    18,399.86x = 144,990,183.60
  5. Step 5: Solve for x
    x = 144,990,183.60/18,399.86
  6. Step 6: Final answer
    x = 7,879.96

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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.