Home / 12,414-17,131.32-6,824.88

Finding the Fourth Proportional to 12,414, 17,131.32 and 6,824.88

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Solution

The fourth proportional to 12,414, 17,131.32 and 6,824.88 is: 9,418.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,414 : 17,131.32 = 6,824.88 : x
  2. Step 2: Convert to fraction form
    12,414/17,131.32 = 6,824.88/x
  3. Step 3: Cross multiply
    12,414x = 17,131.32 × 6,824.88
  4. Step 4: Simplify right side
    12,414x = 116,919,203.24
  5. Step 5: Solve for x
    x = 116,919,203.24/12,414
  6. Step 6: Final answer
    x = 9,418.33

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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.