Home / 12,806.20-19,214.10-5,020.60

Finding the Fourth Proportional to 12,806.20, 19,214.10 and 5,020.60

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Solution

The fourth proportional to 12,806.20, 19,214.10 and 5,020.60 is: 7,532.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,806.20 : 19,214.10 = 5,020.60 : x
  2. Step 2: Convert to fraction form
    12,806.20/19,214.10 = 5,020.60/x
  3. Step 3: Cross multiply
    12,806.20x = 19,214.10 × 5,020.60
  4. Step 4: Simplify right side
    12,806.20x = 96,466,310.46
  5. Step 5: Solve for x
    x = 96,466,310.46/12,806.20
  6. Step 6: Final answer
    x = 7,532.78

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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.