Home / 13,363.25-18,422.03-9,371.97

Finding the Fourth Proportional to 13,363.25, 18,422.03 and 9,371.97

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Solution

The fourth proportional to 13,363.25, 18,422.03 and 9,371.97 is: 12,919.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.25 : 18,422.03 = 9,371.97 : x
  2. Step 2: Convert to fraction form
    13,363.25/18,422.03 = 9,371.97/x
  3. Step 3: Cross multiply
    13,363.25x = 18,422.03 × 9,371.97
  4. Step 4: Simplify right side
    13,363.25x = 172,650,735.93
  5. Step 5: Solve for x
    x = 172,650,735.93/13,363.25
  6. Step 6: Final answer
    x = 12,919.82

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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.