Home / 8,949.36-13,425.60-3,403.20

Finding the Fourth Proportional to 8,949.36, 13,425.60 and 3,403.20

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Solution

The fourth proportional to 8,949.36, 13,425.60 and 3,403.20 is: 5,105.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.36 : 13,425.60 = 3,403.20 : x
  2. Step 2: Convert to fraction form
    8,949.36/13,425.60 = 3,403.20/x
  3. Step 3: Cross multiply
    8,949.36x = 13,425.60 × 3,403.20
  4. Step 4: Simplify right side
    8,949.36x = 45,690,001.92
  5. Step 5: Solve for x
    x = 45,690,001.92/8,949.36
  6. Step 6: Final answer
    x = 5,105.39

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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.