Home / 11,815.43-17,723.14-3,494.79

Finding the Fourth Proportional to 11,815.43, 17,723.14 and 3,494.79

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Solution

The fourth proportional to 11,815.43, 17,723.14 and 3,494.79 is: 5,242.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.43 : 17,723.14 = 3,494.79 : x
  2. Step 2: Convert to fraction form
    11,815.43/17,723.14 = 3,494.79/x
  3. Step 3: Cross multiply
    11,815.43x = 17,723.14 × 3,494.79
  4. Step 4: Simplify right side
    11,815.43x = 61,938,679.27
  5. Step 5: Solve for x
    x = 61,938,679.27/11,815.43
  6. Step 6: Final answer
    x = 5,242.19

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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.