Home / 15,605.33-23,408.46-3,918.78

Finding the Fourth Proportional to 15,605.33, 23,408.46 and 3,918.78

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Solution

The fourth proportional to 15,605.33, 23,408.46 and 3,918.78 is: 5,878.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.33 : 23,408.46 = 3,918.78 : x
  2. Step 2: Convert to fraction form
    15,605.33/23,408.46 = 3,918.78/x
  3. Step 3: Cross multiply
    15,605.33x = 23,408.46 × 3,918.78
  4. Step 4: Simplify right side
    15,605.33x = 91,732,604.88
  5. Step 5: Solve for x
    x = 91,732,604.88/15,605.33
  6. Step 6: Final answer
    x = 5,878.29

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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.