Home / 18,138.71-27,202.59-6,451.22

Finding the Fourth Proportional to 18,138.71, 27,202.59 and 6,451.22

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Solution

The fourth proportional to 18,138.71, 27,202.59 and 6,451.22 is: 9,674.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.71 : 27,202.59 = 6,451.22 : x
  2. Step 2: Convert to fraction form
    18,138.71/27,202.59 = 6,451.22/x
  3. Step 3: Cross multiply
    18,138.71x = 27,202.59 × 6,451.22
  4. Step 4: Simplify right side
    18,138.71x = 175,489,882.85
  5. Step 5: Solve for x
    x = 175,489,882.85/18,138.71
  6. Step 6: Final answer
    x = 9,674.88

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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.