Home / 18,612.44-27,922.78-6,131.96

Finding the Fourth Proportional to 18,612.44, 27,922.78 and 6,131.96

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Solution

The fourth proportional to 18,612.44, 27,922.78 and 6,131.96 is: 9,199.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.44 : 27,922.78 = 6,131.96 : x
  2. Step 2: Convert to fraction form
    18,612.44/27,922.78 = 6,131.96/x
  3. Step 3: Cross multiply
    18,612.44x = 27,922.78 × 6,131.96
  4. Step 4: Simplify right side
    18,612.44x = 171,221,354.72
  5. Step 5: Solve for x
    x = 171,221,354.72/18,612.44
  6. Step 6: Final answer
    x = 9,199.30

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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.