Home / 8,835.60-13,243.68-3,638.64

Finding the Fourth Proportional to 8,835.60, 13,243.68 and 3,638.64

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Solution

The fourth proportional to 8,835.60, 13,243.68 and 3,638.64 is: 5,453.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.60 : 13,243.68 = 3,638.64 : x
  2. Step 2: Convert to fraction form
    8,835.60/13,243.68 = 3,638.64/x
  3. Step 3: Cross multiply
    8,835.60x = 13,243.68 × 3,638.64
  4. Step 4: Simplify right side
    8,835.60x = 48,188,983.80
  5. Step 5: Solve for x
    x = 48,188,983.80/8,835.60
  6. Step 6: Final answer
    x = 5,453.96

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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.