Home / 11,831-17,749.50-4,435.48

Finding the Fourth Proportional to 11,831, 17,749.50 and 4,435.48

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Solution

The fourth proportional to 11,831, 17,749.50 and 4,435.48 is: 6,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831 : 17,749.50 = 4,435.48 : x
  2. Step 2: Convert to fraction form
    11,831/17,749.50 = 4,435.48/x
  3. Step 3: Cross multiply
    11,831x = 17,749.50 × 4,435.48
  4. Step 4: Simplify right side
    11,831x = 78,727,552.26
  5. Step 5: Solve for x
    x = 78,727,552.26/11,831
  6. Step 6: Final answer
    x = 6,654.34

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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.