Home / 11,724.82-16,179.64-6,418.63

Finding the Fourth Proportional to 11,724.82, 16,179.64 and 6,418.63

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Solution

The fourth proportional to 11,724.82, 16,179.64 and 6,418.63 is: 8,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.82 : 16,179.64 = 6,418.63 : x
  2. Step 2: Convert to fraction form
    11,724.82/16,179.64 = 6,418.63/x
  3. Step 3: Cross multiply
    11,724.82x = 16,179.64 × 6,418.63
  4. Step 4: Simplify right side
    11,724.82x = 103,851,122.69
  5. Step 5: Solve for x
    x = 103,851,122.69/11,724.82
  6. Step 6: Final answer
    x = 8,857.37

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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.