Home / 18,500.82-27,748.50-6,811.32

Finding the Fourth Proportional to 18,500.82, 27,748.50 and 6,811.32

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Solution

The fourth proportional to 18,500.82, 27,748.50 and 6,811.32 is: 10,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.82 : 27,748.50 = 6,811.32 : x
  2. Step 2: Convert to fraction form
    18,500.82/27,748.50 = 6,811.32/x
  3. Step 3: Cross multiply
    18,500.82x = 27,748.50 × 6,811.32
  4. Step 4: Simplify right side
    18,500.82x = 189,003,913.02
  5. Step 5: Solve for x
    x = 189,003,913.02/18,500.82
  6. Step 6: Final answer
    x = 10,215.97

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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.