Home / 12,743.28-17,593.90-8,208

Finding the Fourth Proportional to 12,743.28, 17,593.90 and 8,208

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Solution

The fourth proportional to 12,743.28, 17,593.90 and 8,208 is: 11,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,743.28 : 17,593.90 = 8,208 : x
  2. Step 2: Convert to fraction form
    12,743.28/17,593.90 = 8,208/x
  3. Step 3: Cross multiply
    12,743.28x = 17,593.90 × 8,208
  4. Step 4: Simplify right side
    12,743.28x = 144,410,731.20
  5. Step 5: Solve for x
    x = 144,410,731.20/12,743.28
  6. Step 6: Final answer
    x = 11,332.30

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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.