Home / 18,540.96-27,799.09-11,963.55

Finding the Fourth Proportional to 18,540.96, 27,799.09 and 11,963.55

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Solution

The fourth proportional to 18,540.96, 27,799.09 and 11,963.55 is: 17,937.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,540.96 : 27,799.09 = 11,963.55 : x
  2. Step 2: Convert to fraction form
    18,540.96/27,799.09 = 11,963.55/x
  3. Step 3: Cross multiply
    18,540.96x = 27,799.09 × 11,963.55
  4. Step 4: Simplify right side
    18,540.96x = 332,575,803.17
  5. Step 5: Solve for x
    x = 332,575,803.17/18,540.96
  6. Step 6: Final answer
    x = 17,937.36

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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.