Home / 8,789.28-13,188.36-3,858.96

Finding the Fourth Proportional to 8,789.28, 13,188.36 and 3,858.96

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Solution

The fourth proportional to 8,789.28, 13,188.36 and 3,858.96 is: 5,790.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.28 : 13,188.36 = 3,858.96 : x
  2. Step 2: Convert to fraction form
    8,789.28/13,188.36 = 3,858.96/x
  3. Step 3: Cross multiply
    8,789.28x = 13,188.36 × 3,858.96
  4. Step 4: Simplify right side
    8,789.28x = 50,893,353.71
  5. Step 5: Solve for x
    x = 50,893,353.71/8,789.28
  6. Step 6: Final answer
    x = 5,790.39

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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.