Home / 15,212.71-20,993.31-8,498.43

Finding the Fourth Proportional to 15,212.71, 20,993.31 and 8,498.43

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Solution

The fourth proportional to 15,212.71, 20,993.31 and 8,498.43 is: 11,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.71 : 20,993.31 = 8,498.43 : x
  2. Step 2: Convert to fraction form
    15,212.71/20,993.31 = 8,498.43/x
  3. Step 3: Cross multiply
    15,212.71x = 20,993.31 × 8,498.43
  4. Step 4: Simplify right side
    15,212.71x = 178,410,175.50
  5. Step 5: Solve for x
    x = 178,410,175.50/15,212.71
  6. Step 6: Final answer
    x = 11,727.71

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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.