Home / 13,766.06-18,997.62-8,099.78

Finding the Fourth Proportional to 13,766.06, 18,997.62 and 8,099.78

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Solution

The fourth proportional to 13,766.06, 18,997.62 and 8,099.78 is: 11,177.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,766.06 : 18,997.62 = 8,099.78 : x
  2. Step 2: Convert to fraction form
    13,766.06/18,997.62 = 8,099.78/x
  3. Step 3: Cross multiply
    13,766.06x = 18,997.62 × 8,099.78
  4. Step 4: Simplify right side
    13,766.06x = 153,876,542.52
  5. Step 5: Solve for x
    x = 153,876,542.52/13,766.06
  6. Step 6: Final answer
    x = 11,177.97

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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.