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Finding the Fourth Proportional to 12,422.94, 17,143.97 and 6,758.00

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Solution

The fourth proportional to 12,422.94, 17,143.97 and 6,758.00 is: 9,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,422.94 : 17,143.97 = 6,758.00 : x
  2. Step 2: Convert to fraction form
    12,422.94/17,143.97 = 6,758.00/x
  3. Step 3: Cross multiply
    12,422.94x = 17,143.97 × 6,758.00
  4. Step 4: Simplify right side
    12,422.94x = 115,858,958.33
  5. Step 5: Solve for x
    x = 115,858,958.33/12,422.94
  6. Step 6: Final answer
    x = 9,326.21

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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.