Home / 12,111.94-16,610.19-11,606.79

Finding the Fourth Proportional to 12,111.94, 16,610.19 and 11,606.79

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Solution

The fourth proportional to 12,111.94, 16,610.19 and 11,606.79 is: 15,917.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.94 : 16,610.19 = 11,606.79 : x
  2. Step 2: Convert to fraction form
    12,111.94/16,610.19 = 11,606.79/x
  3. Step 3: Cross multiply
    12,111.94x = 16,610.19 × 11,606.79
  4. Step 4: Simplify right side
    12,111.94x = 192,790,987.19
  5. Step 5: Solve for x
    x = 192,790,987.19/12,111.94
  6. Step 6: Final answer
    x = 15,917.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.