Home / 11,724.49-16,179.79-6,419.32

Finding the Fourth Proportional to 11,724.49, 16,179.79 and 6,419.32

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Solution

The fourth proportional to 11,724.49, 16,179.79 and 6,419.32 is: 8,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.49 : 16,179.79 = 6,419.32 : x
  2. Step 2: Convert to fraction form
    11,724.49/16,179.79 = 6,419.32/x
  3. Step 3: Cross multiply
    11,724.49x = 16,179.79 × 6,419.32
  4. Step 4: Simplify right side
    11,724.49x = 103,863,249.54
  5. Step 5: Solve for x
    x = 103,863,249.54/11,724.49
  6. Step 6: Final answer
    x = 8,858.66

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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.