Home / 12,392.97-17,102.32-6,727.72

Finding the Fourth Proportional to 12,392.97, 17,102.32 and 6,727.72

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Solution

The fourth proportional to 12,392.97, 17,102.32 and 6,727.72 is: 9,284.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.97 : 17,102.32 = 6,727.72 : x
  2. Step 2: Convert to fraction form
    12,392.97/17,102.32 = 6,727.72/x
  3. Step 3: Cross multiply
    12,392.97x = 17,102.32 × 6,727.72
  4. Step 4: Simplify right side
    12,392.97x = 115,059,679.89
  5. Step 5: Solve for x
    x = 115,059,679.89/12,392.97
  6. Step 6: Final answer
    x = 9,284.27

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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.