Home / 20,126.93-27,773.78-11,173.73

Finding the Fourth Proportional to 20,126.93, 27,773.78 and 11,173.73

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Solution

The fourth proportional to 20,126.93, 27,773.78 and 11,173.73 is: 15,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.93 : 27,773.78 = 11,173.73 : x
  2. Step 2: Convert to fraction form
    20,126.93/27,773.78 = 11,173.73/x
  3. Step 3: Cross multiply
    20,126.93x = 27,773.78 × 11,173.73
  4. Step 4: Simplify right side
    20,126.93x = 310,336,718.80
  5. Step 5: Solve for x
    x = 310,336,718.80/20,126.93
  6. Step 6: Final answer
    x = 15,418.98

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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.