Home / 11,724.87-16,180.32-6,419.68

Finding the Fourth Proportional to 11,724.87, 16,180.32 and 6,419.68

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Solution

The fourth proportional to 11,724.87, 16,180.32 and 6,419.68 is: 8,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,724.87 : 16,180.32 = 6,419.68 : x
  2. Step 2: Convert to fraction form
    11,724.87/16,180.32 = 6,419.68/x
  3. Step 3: Cross multiply
    11,724.87x = 16,180.32 × 6,419.68
  4. Step 4: Simplify right side
    11,724.87x = 103,872,476.70
  5. Step 5: Solve for x
    x = 103,872,476.70/11,724.87
  6. Step 6: Final answer
    x = 8,859.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.