Home / 11,842.21-17,759.61-3,942.88

Finding the Fourth Proportional to 11,842.21, 17,759.61 and 3,942.88

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Solution

The fourth proportional to 11,842.21, 17,759.61 and 3,942.88 is: 5,913.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,842.21 : 17,759.61 = 3,942.88 : x
  2. Step 2: Convert to fraction form
    11,842.21/17,759.61 = 3,942.88/x
  3. Step 3: Cross multiply
    11,842.21x = 17,759.61 × 3,942.88
  4. Step 4: Simplify right side
    11,842.21x = 70,023,966.68
  5. Step 5: Solve for x
    x = 70,023,966.68/11,842.21
  6. Step 6: Final answer
    x = 5,913.08

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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.