Home / 20,126.68-27,773.74-11,173.61

Finding the Fourth Proportional to 20,126.68, 27,773.74 and 11,173.61

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Solution

The fourth proportional to 20,126.68, 27,773.74 and 11,173.61 is: 15,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.68 : 27,773.74 = 11,173.61 : x
  2. Step 2: Convert to fraction form
    20,126.68/27,773.74 = 11,173.61/x
  3. Step 3: Cross multiply
    20,126.68x = 27,773.74 × 11,173.61
  4. Step 4: Simplify right side
    20,126.68x = 310,332,963.34
  5. Step 5: Solve for x
    x = 310,332,963.34/20,126.68
  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.