Home / 8,938.65-13,408.28-3,394.61

Finding the Fourth Proportional to 8,938.65, 13,408.28 and 3,394.61

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Solution

The fourth proportional to 8,938.65, 13,408.28 and 3,394.61 is: 5,092.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.65 : 13,408.28 = 3,394.61 : x
  2. Step 2: Convert to fraction form
    8,938.65/13,408.28 = 3,394.61/x
  3. Step 3: Cross multiply
    8,938.65x = 13,408.28 × 3,394.61
  4. Step 4: Simplify right side
    8,938.65x = 45,515,797.36
  5. Step 5: Solve for x
    x = 45,515,797.36/8,938.65
  6. Step 6: Final answer
    x = 5,092.02

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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.