Home / 11,768.92-17,655.81-3,449.21

Finding the Fourth Proportional to 11,768.92, 17,655.81 and 3,449.21

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Solution

The fourth proportional to 11,768.92, 17,655.81 and 3,449.21 is: 5,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,768.92 : 17,655.81 = 3,449.21 : x
  2. Step 2: Convert to fraction form
    11,768.92/17,655.81 = 3,449.21/x
  3. Step 3: Cross multiply
    11,768.92x = 17,655.81 × 3,449.21
  4. Step 4: Simplify right side
    11,768.92x = 60,898,495.20
  5. Step 5: Solve for x
    x = 60,898,495.20/11,768.92
  6. Step 6: Final answer
    x = 5,174.52

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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.