Home / 11,694.80-16,139.40-6,659.12

Finding the Fourth Proportional to 11,694.80, 16,139.40 and 6,659.12

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Solution

The fourth proportional to 11,694.80, 16,139.40 and 6,659.12 is: 9,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,694.80 : 16,139.40 = 6,659.12 : x
  2. Step 2: Convert to fraction form
    11,694.80/16,139.40 = 6,659.12/x
  3. Step 3: Cross multiply
    11,694.80x = 16,139.40 × 6,659.12
  4. Step 4: Simplify right side
    11,694.80x = 107,474,201.33
  5. Step 5: Solve for x
    x = 107,474,201.33/11,694.80
  6. Step 6: Final answer
    x = 9,189.91

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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.