Home / 15,212.92-20,991.26-8,498.60

Finding the Fourth Proportional to 15,212.92, 20,991.26 and 8,498.60

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Solution

The fourth proportional to 15,212.92, 20,991.26 and 8,498.60 is: 11,726.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,212.92 : 20,991.26 = 8,498.60 : x
  2. Step 2: Convert to fraction form
    15,212.92/20,991.26 = 8,498.60/x
  3. Step 3: Cross multiply
    15,212.92x = 20,991.26 × 8,498.60
  4. Step 4: Simplify right side
    15,212.92x = 178,396,293.34
  5. Step 5: Solve for x
    x = 178,396,293.34/15,212.92
  6. Step 6: Final answer
    x = 11,726.63

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1.5x scale

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.