Home / 8,817.25-13,218.87-4,371.79

Finding the Fourth Proportional to 8,817.25, 13,218.87 and 4,371.79

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Solution

The fourth proportional to 8,817.25, 13,218.87 and 4,371.79 is: 6,554.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,817.25 : 13,218.87 = 4,371.79 : x
  2. Step 2: Convert to fraction form
    8,817.25/13,218.87 = 4,371.79/x
  3. Step 3: Cross multiply
    8,817.25x = 13,218.87 × 4,371.79
  4. Step 4: Simplify right side
    8,817.25x = 57,790,123.68
  5. Step 5: Solve for x
    x = 57,790,123.68/8,817.25
  6. Step 6: Final answer
    x = 6,554.21

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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.