Home / 11,817.73-17,729.89-5,154.81

Finding the Fourth Proportional to 11,817.73, 17,729.89 and 5,154.81

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Solution

The fourth proportional to 11,817.73, 17,729.89 and 5,154.81 is: 7,733.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817.73 : 17,729.89 = 5,154.81 : x
  2. Step 2: Convert to fraction form
    11,817.73/17,729.89 = 5,154.81/x
  3. Step 3: Cross multiply
    11,817.73x = 17,729.89 × 5,154.81
  4. Step 4: Simplify right side
    11,817.73x = 91,394,245.71
  5. Step 5: Solve for x
    x = 91,394,245.71/11,817.73
  6. Step 6: Final answer
    x = 7,733.65

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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.