Home / 12,829.20-19,227.60-11,371.20

Finding the Fourth Proportional to 12,829.20, 19,227.60 and 11,371.20

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Solution

The fourth proportional to 12,829.20, 19,227.60 and 11,371.20 is: 17,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.20 : 19,227.60 = 11,371.20 : x
  2. Step 2: Convert to fraction form
    12,829.20/19,227.60 = 11,371.20/x
  3. Step 3: Cross multiply
    12,829.20x = 19,227.60 × 11,371.20
  4. Step 4: Simplify right side
    12,829.20x = 218,640,885.12
  5. Step 5: Solve for x
    x = 218,640,885.12/12,829.20
  6. Step 6: Final answer
    x = 17,042.44

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1.5x scale

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.