Home / 18,217.96-27,330.78-5,905

Finding the Fourth Proportional to 18,217.96, 27,330.78 and 5,905

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Solution

The fourth proportional to 18,217.96, 27,330.78 and 5,905 is: 8,858.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.96 : 27,330.78 = 5,905 : x
  2. Step 2: Convert to fraction form
    18,217.96/27,330.78 = 5,905/x
  3. Step 3: Cross multiply
    18,217.96x = 27,330.78 × 5,905
  4. Step 4: Simplify right side
    18,217.96x = 161,388,255.90
  5. Step 5: Solve for x
    x = 161,388,255.90/18,217.96
  6. Step 6: Final answer
    x = 8,858.74

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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.