Home / 20,126.43-27,774.54-11,173.95

Finding the Fourth Proportional to 20,126.43, 27,774.54 and 11,173.95

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Solution

The fourth proportional to 20,126.43, 27,774.54 and 11,173.95 is: 15,420.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.43 : 27,774.54 = 11,173.95 : x
  2. Step 2: Convert to fraction form
    20,126.43/27,774.54 = 11,173.95/x
  3. Step 3: Cross multiply
    20,126.43x = 27,774.54 × 11,173.95
  4. Step 4: Simplify right side
    20,126.43x = 310,351,321.23
  5. Step 5: Solve for x
    x = 310,351,321.23/20,126.43
  6. Step 6: Final answer
    x = 15,420.09

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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.