Home / 11,660.36-16,091.46-7,181.56

Finding the Fourth Proportional to 11,660.36, 16,091.46 and 7,181.56

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Solution

The fourth proportional to 11,660.36, 16,091.46 and 7,181.56 is: 9,910.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,660.36 : 16,091.46 = 7,181.56 : x
  2. Step 2: Convert to fraction form
    11,660.36/16,091.46 = 7,181.56/x
  3. Step 3: Cross multiply
    11,660.36x = 16,091.46 × 7,181.56
  4. Step 4: Simplify right side
    11,660.36x = 115,561,805.59
  5. Step 5: Solve for x
    x = 115,561,805.59/11,660.36
  6. Step 6: Final answer
    x = 9,910.66

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1.5x scale

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.