Home / 13,187.97-18,198.94-7,524.55

Finding the Fourth Proportional to 13,187.97, 18,198.94 and 7,524.55

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Solution

The fourth proportional to 13,187.97, 18,198.94 and 7,524.55 is: 10,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.97 : 18,198.94 = 7,524.55 : x
  2. Step 2: Convert to fraction form
    13,187.97/18,198.94 = 7,524.55/x
  3. Step 3: Cross multiply
    13,187.97x = 18,198.94 × 7,524.55
  4. Step 4: Simplify right side
    13,187.97x = 136,938,705.36
  5. Step 5: Solve for x
    x = 136,938,705.36/13,187.97
  6. Step 6: Final answer
    x = 10,383.61

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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.