Home / 16,771.38-23,144.72-9,218.54

Finding the Fourth Proportional to 16,771.38, 23,144.72 and 9,218.54

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Solution

The fourth proportional to 16,771.38, 23,144.72 and 9,218.54 is: 12,721.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,771.38 : 23,144.72 = 9,218.54 : x
  2. Step 2: Convert to fraction form
    16,771.38/23,144.72 = 9,218.54/x
  3. Step 3: Cross multiply
    16,771.38x = 23,144.72 × 9,218.54
  4. Step 4: Simplify right side
    16,771.38x = 213,360,365.29
  5. Step 5: Solve for x
    x = 213,360,365.29/16,771.38
  6. Step 6: Final answer
    x = 12,721.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.