Home / 9,221.67-13,821.57-5,318.01

Finding the Fourth Proportional to 9,221.67, 13,821.57 and 5,318.01

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Solution

The fourth proportional to 9,221.67, 13,821.57 and 5,318.01 is: 7,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.67 : 13,821.57 = 5,318.01 : x
  2. Step 2: Convert to fraction form
    9,221.67/13,821.57 = 5,318.01/x
  3. Step 3: Cross multiply
    9,221.67x = 13,821.57 × 5,318.01
  4. Step 4: Simplify right side
    9,221.67x = 73,503,247.48
  5. Step 5: Solve for x
    x = 73,503,247.48/9,221.67
  6. Step 6: Final answer
    x = 7,970.71

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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.