Home / 11,724.15-16,179.37-6,419.46

Finding the Fourth Proportional to 11,724.15, 16,179.37 and 6,419.46

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Solution

The fourth proportional to 11,724.15, 16,179.37 and 6,419.46 is: 8,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.15 : 16,179.37 = 6,419.46 : x
  2. Step 2: Convert to fraction form
    11,724.15/16,179.37 = 6,419.46/x
  3. Step 3: Cross multiply
    11,724.15x = 16,179.37 × 6,419.46
  4. Step 4: Simplify right side
    11,724.15x = 103,862,818.54
  5. Step 5: Solve for x
    x = 103,862,818.54/11,724.15
  6. Step 6: Final answer
    x = 8,858.88

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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.