Home / 11,724.25-16,179.47-6,419.41

Finding the Fourth Proportional to 11,724.25, 16,179.47 and 6,419.41

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Solution

The fourth proportional to 11,724.25, 16,179.47 and 6,419.41 is: 8,858.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.25 : 16,179.47 = 6,419.41 : x
  2. Step 2: Convert to fraction form
    11,724.25/16,179.47 = 6,419.41/x
  3. Step 3: Cross multiply
    11,724.25x = 16,179.47 × 6,419.41
  4. Step 4: Simplify right side
    11,724.25x = 103,862,651.51
  5. Step 5: Solve for x
    x = 103,862,651.51/11,724.25
  6. Step 6: Final answer
    x = 8,858.79

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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.