Home / 11,744.05-16,207.81-6,439.90

Finding the Fourth Proportional to 11,744.05, 16,207.81 and 6,439.90

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Solution

The fourth proportional to 11,744.05, 16,207.81 and 6,439.90 is: 8,887.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,744.05 : 16,207.81 = 6,439.90 : x
  2. Step 2: Convert to fraction form
    11,744.05/16,207.81 = 6,439.90/x
  3. Step 3: Cross multiply
    11,744.05x = 16,207.81 × 6,439.90
  4. Step 4: Simplify right side
    11,744.05x = 104,376,619.00
  5. Step 5: Solve for x
    x = 104,376,619.00/11,744.05
  6. Step 6: Final answer
    x = 8,887.62

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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.