Home / 18,722.26-28,092.16-8,190.92

Finding the Fourth Proportional to 18,722.26, 28,092.16 and 8,190.92

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Solution

The fourth proportional to 18,722.26, 28,092.16 and 8,190.92 is: 12,290.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.26 : 28,092.16 = 8,190.92 : x
  2. Step 2: Convert to fraction form
    18,722.26/28,092.16 = 8,190.92/x
  3. Step 3: Cross multiply
    18,722.26x = 28,092.16 × 8,190.92
  4. Step 4: Simplify right side
    18,722.26x = 230,100,635.19
  5. Step 5: Solve for x
    x = 230,100,635.19/18,722.26
  6. Step 6: Final answer
    x = 12,290.22

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1.5x scale

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.