Home / 11,724.26-16,179.48-6,419.40

Finding the Fourth Proportional to 11,724.26, 16,179.48 and 6,419.40

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Solution

The fourth proportional to 11,724.26, 16,179.48 and 6,419.40 is: 8,858.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.26 : 16,179.48 = 6,419.40 : x
  2. Step 2: Convert to fraction form
    11,724.26/16,179.48 = 6,419.40/x
  3. Step 3: Cross multiply
    11,724.26x = 16,179.48 × 6,419.40
  4. Step 4: Simplify right side
    11,724.26x = 103,862,553.91
  5. Step 5: Solve for x
    x = 103,862,553.91/11,724.26
  6. Step 6: Final answer
    x = 8,858.77

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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.