Home / 11,226.81-16,791-7,839.69

Finding the Fourth Proportional to 11,226.81, 16,791 and 7,839.69

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Solution

The fourth proportional to 11,226.81, 16,791 and 7,839.69 is: 11,725.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,226.81 : 16,791 = 7,839.69 : x
  2. Step 2: Convert to fraction form
    11,226.81/16,791 = 7,839.69/x
  3. Step 3: Cross multiply
    11,226.81x = 16,791 × 7,839.69
  4. Step 4: Simplify right side
    11,226.81x = 131,636,234.79
  5. Step 5: Solve for x
    x = 131,636,234.79/11,226.81
  6. Step 6: Final answer
    x = 11,725.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.