Home / 9,163.42-13,749.45-3,318.46

Finding the Fourth Proportional to 9,163.42, 13,749.45 and 3,318.46

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Solution

The fourth proportional to 9,163.42, 13,749.45 and 3,318.46 is: 4,979.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,163.42 : 13,749.45 = 3,318.46 : x
  2. Step 2: Convert to fraction form
    9,163.42/13,749.45 = 3,318.46/x
  3. Step 3: Cross multiply
    9,163.42x = 13,749.45 × 3,318.46
  4. Step 4: Simplify right side
    9,163.42x = 45,626,999.85
  5. Step 5: Solve for x
    x = 45,626,999.85/9,163.42
  6. Step 6: Final answer
    x = 4,979.25

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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.