Home / 18,134.22-27,189.36-8,755.68

Finding the Fourth Proportional to 18,134.22, 27,189.36 and 8,755.68

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Solution

The fourth proportional to 18,134.22, 27,189.36 and 8,755.68 is: 13,127.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.22 : 27,189.36 = 8,755.68 : x
  2. Step 2: Convert to fraction form
    18,134.22/27,189.36 = 8,755.68/x
  3. Step 3: Cross multiply
    18,134.22x = 27,189.36 × 8,755.68
  4. Step 4: Simplify right side
    18,134.22x = 238,061,335.56
  5. Step 5: Solve for x
    x = 238,061,335.56/18,134.22
  6. Step 6: Final answer
    x = 13,127.74

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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.