Home / 12,692.45-17,517.37-7,388.97

Finding the Fourth Proportional to 12,692.45, 17,517.37 and 7,388.97

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Solution

The fourth proportional to 12,692.45, 17,517.37 and 7,388.97 is: 10,197.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.45 : 17,517.37 = 7,388.97 : x
  2. Step 2: Convert to fraction form
    12,692.45/17,517.37 = 7,388.97/x
  3. Step 3: Cross multiply
    12,692.45x = 17,517.37 × 7,388.97
  4. Step 4: Simplify right side
    12,692.45x = 129,435,321.41
  5. Step 5: Solve for x
    x = 129,435,321.41/12,692.45
  6. Step 6: Final answer
    x = 10,197.82

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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.