Home / 13,961.82-19,268.22-8,660.16

Finding the Fourth Proportional to 13,961.82, 19,268.22 and 8,660.16

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Solution

The fourth proportional to 13,961.82, 19,268.22 and 8,660.16 is: 11,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,961.82 : 19,268.22 = 8,660.16 : x
  2. Step 2: Convert to fraction form
    13,961.82/19,268.22 = 8,660.16/x
  3. Step 3: Cross multiply
    13,961.82x = 19,268.22 × 8,660.16
  4. Step 4: Simplify right side
    13,961.82x = 166,865,868.12
  5. Step 5: Solve for x
    x = 166,865,868.12/13,961.82
  6. Step 6: Final answer
    x = 11,951.58

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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.