Home / 9,163.67-13,749.83-3,318.71

Finding the Fourth Proportional to 9,163.67, 13,749.83 and 3,318.71

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Solution

The fourth proportional to 9,163.67, 13,749.83 and 3,318.71 is: 4,979.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.67 : 13,749.83 = 3,318.71 : x
  2. Step 2: Convert to fraction form
    9,163.67/13,749.83 = 3,318.71/x
  3. Step 3: Cross multiply
    9,163.67x = 13,749.83 × 3,318.71
  4. Step 4: Simplify right side
    9,163.67x = 45,631,698.32
  5. Step 5: Solve for x
    x = 45,631,698.32/9,163.67
  6. Step 6: Final answer
    x = 4,979.63

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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.