Home / 18,108.12-27,164.34-6,422.52

Finding the Fourth Proportional to 18,108.12, 27,164.34 and 6,422.52

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Solution

The fourth proportional to 18,108.12, 27,164.34 and 6,422.52 is: 9,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,108.12 : 27,164.34 = 6,422.52 : x
  2. Step 2: Convert to fraction form
    18,108.12/27,164.34 = 6,422.52/x
  3. Step 3: Cross multiply
    18,108.12x = 27,164.34 × 6,422.52
  4. Step 4: Simplify right side
    18,108.12x = 174,463,516.94
  5. Step 5: Solve for x
    x = 174,463,516.94/18,108.12
  6. Step 6: Final answer
    x = 9,634.55

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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.