Home / 12,819.49-17,688.77-8,563.73

Finding the Fourth Proportional to 12,819.49, 17,688.77 and 8,563.73

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Solution

The fourth proportional to 12,819.49, 17,688.77 and 8,563.73 is: 11,816.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.49 : 17,688.77 = 8,563.73 : x
  2. Step 2: Convert to fraction form
    12,819.49/17,688.77 = 8,563.73/x
  3. Step 3: Cross multiply
    12,819.49x = 17,688.77 × 8,563.73
  4. Step 4: Simplify right side
    12,819.49x = 151,481,850.31
  5. Step 5: Solve for x
    x = 151,481,850.31/12,819.49
  6. Step 6: Final answer
    x = 11,816.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.