Home / 11,723.92-16,179.40-6,418.74

Finding the Fourth Proportional to 11,723.92, 16,179.40 and 6,418.74

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Solution

The fourth proportional to 11,723.92, 16,179.40 and 6,418.74 is: 8,858.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,723.92 : 16,179.40 = 6,418.74 : x
  2. Step 2: Convert to fraction form
    11,723.92/16,179.40 = 6,418.74/x
  3. Step 3: Cross multiply
    11,723.92x = 16,179.40 × 6,418.74
  4. Step 4: Simplify right side
    11,723.92x = 103,851,361.96
  5. Step 5: Solve for x
    x = 103,851,361.96/11,723.92
  6. Step 6: Final answer
    x = 8,858.07

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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.