Home / 11,391.66-17,076.15-7,921.62

Finding the Fourth Proportional to 11,391.66, 17,076.15 and 7,921.62

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Solution

The fourth proportional to 11,391.66, 17,076.15 and 7,921.62 is: 11,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391.66 : 17,076.15 = 7,921.62 : x
  2. Step 2: Convert to fraction form
    11,391.66/17,076.15 = 7,921.62/x
  3. Step 3: Cross multiply
    11,391.66x = 17,076.15 × 7,921.62
  4. Step 4: Simplify right side
    11,391.66x = 135,270,771.36
  5. Step 5: Solve for x
    x = 135,270,771.36/11,391.66
  6. Step 6: Final answer
    x = 11,874.54

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1.5x scale

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.