Home / 8,819.58-13,231.20-3,889.11

Finding the Fourth Proportional to 8,819.58, 13,231.20 and 3,889.11

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Solution

The fourth proportional to 8,819.58, 13,231.20 and 3,889.11 is: 5,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.58 : 13,231.20 = 3,889.11 : x
  2. Step 2: Convert to fraction form
    8,819.58/13,231.20 = 3,889.11/x
  3. Step 3: Cross multiply
    8,819.58x = 13,231.20 × 3,889.11
  4. Step 4: Simplify right side
    8,819.58x = 51,457,592.23
  5. Step 5: Solve for x
    x = 51,457,592.23/8,819.58
  6. Step 6: Final answer
    x = 5,834.47

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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.