Home / 11,815.56-17,721.72-4,023.36

Finding the Fourth Proportional to 11,815.56, 17,721.72 and 4,023.36

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Solution

The fourth proportional to 11,815.56, 17,721.72 and 4,023.36 is: 6,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.56 : 17,721.72 = 4,023.36 : x
  2. Step 2: Convert to fraction form
    11,815.56/17,721.72 = 4,023.36/x
  3. Step 3: Cross multiply
    11,815.56x = 17,721.72 × 4,023.36
  4. Step 4: Simplify right side
    11,815.56x = 71,300,859.38
  5. Step 5: Solve for x
    x = 71,300,859.38/11,815.56
  6. Step 6: Final answer
    x = 6,034.49

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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.