Home / 12,382.35-17,067.96-9,725.15

Finding the Fourth Proportional to 12,382.35, 17,067.96 and 9,725.15

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Solution

The fourth proportional to 12,382.35, 17,067.96 and 9,725.15 is: 13,405.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.35 : 17,067.96 = 9,725.15 : x
  2. Step 2: Convert to fraction form
    12,382.35/17,067.96 = 9,725.15/x
  3. Step 3: Cross multiply
    12,382.35x = 17,067.96 × 9,725.15
  4. Step 4: Simplify right side
    12,382.35x = 165,988,385.85
  5. Step 5: Solve for x
    x = 165,988,385.85/12,382.35
  6. Step 6: Final answer
    x = 13,405.24

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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.