Home / 18,207.18-27,321.39-7,676.56

Finding the Fourth Proportional to 18,207.18, 27,321.39 and 7,676.56

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Solution

The fourth proportional to 18,207.18, 27,321.39 and 7,676.56 is: 11,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.18 : 27,321.39 = 7,676.56 : x
  2. Step 2: Convert to fraction form
    18,207.18/27,321.39 = 7,676.56/x
  3. Step 3: Cross multiply
    18,207.18x = 27,321.39 × 7,676.56
  4. Step 4: Simplify right side
    18,207.18x = 209,734,289.62
  5. Step 5: Solve for x
    x = 209,734,289.62/18,207.18
  6. Step 6: Final answer
    x = 11,519.32

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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.