Home / 10,911.27-15,057.16-6,669.44

Finding the Fourth Proportional to 10,911.27, 15,057.16 and 6,669.44

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Solution

The fourth proportional to 10,911.27, 15,057.16 and 6,669.44 is: 9,203.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911.27 : 15,057.16 = 6,669.44 : x
  2. Step 2: Convert to fraction form
    10,911.27/15,057.16 = 6,669.44/x
  3. Step 3: Cross multiply
    10,911.27x = 15,057.16 × 6,669.44
  4. Step 4: Simplify right side
    10,911.27x = 100,422,789.70
  5. Step 5: Solve for x
    x = 100,422,789.70/10,911.27
  6. Step 6: Final answer
    x = 9,203.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.