Home / 18,221.41-27,305.52-8,077.55

Finding the Fourth Proportional to 18,221.41, 27,305.52 and 8,077.55

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Solution

The fourth proportional to 18,221.41, 27,305.52 and 8,077.55 is: 12,104.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,221.41 : 27,305.52 = 8,077.55 : x
  2. Step 2: Convert to fraction form
    18,221.41/27,305.52 = 8,077.55/x
  3. Step 3: Cross multiply
    18,221.41x = 27,305.52 × 8,077.55
  4. Step 4: Simplify right side
    18,221.41x = 220,561,703.08
  5. Step 5: Solve for x
    x = 220,561,703.08/18,221.41
  6. Step 6: Final answer
    x = 12,104.54

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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.