Home / 8,819.54-13,220.11-2,974.14

Finding the Fourth Proportional to 8,819.54, 13,220.11 and 2,974.14

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Solution

The fourth proportional to 8,819.54, 13,220.11 and 2,974.14 is: 4,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.54 : 13,220.11 = 2,974.14 : x
  2. Step 2: Convert to fraction form
    8,819.54/13,220.11 = 2,974.14/x
  3. Step 3: Cross multiply
    8,819.54x = 13,220.11 × 2,974.14
  4. Step 4: Simplify right side
    8,819.54x = 39,318,457.96
  5. Step 5: Solve for x
    x = 39,318,457.96/8,819.54
  6. Step 6: Final answer
    x = 4,458.11

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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.