Home / 11,819.84-17,730.25-3,923.06

Finding the Fourth Proportional to 11,819.84, 17,730.25 and 3,923.06

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Solution

The fourth proportional to 11,819.84, 17,730.25 and 3,923.06 is: 5,884.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.84 : 17,730.25 = 3,923.06 : x
  2. Step 2: Convert to fraction form
    11,819.84/17,730.25 = 3,923.06/x
  3. Step 3: Cross multiply
    11,819.84x = 17,730.25 × 3,923.06
  4. Step 4: Simplify right side
    11,819.84x = 69,556,736.11
  5. Step 5: Solve for x
    x = 69,556,736.11/11,819.84
  6. Step 6: Final answer
    x = 5,884.75

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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.