Home / 8,938.92-13,405.77-3,388.26

Finding the Fourth Proportional to 8,938.92, 13,405.77 and 3,388.26

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Solution

The fourth proportional to 8,938.92, 13,405.77 and 3,388.26 is: 5,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,938.92 : 13,405.77 = 3,388.26 : x
  2. Step 2: Convert to fraction form
    8,938.92/13,405.77 = 3,388.26/x
  3. Step 3: Cross multiply
    8,938.92x = 13,405.77 × 3,388.26
  4. Step 4: Simplify right side
    8,938.92x = 45,422,234.26
  5. Step 5: Solve for x
    x = 45,422,234.26/8,938.92
  6. Step 6: Final answer
    x = 5,081.40

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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.