Home / 12,475.73-17,187.26-8,692.05

Finding the Fourth Proportional to 12,475.73, 17,187.26 and 8,692.05

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Solution

The fourth proportional to 12,475.73, 17,187.26 and 8,692.05 is: 11,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.73 : 17,187.26 = 8,692.05 : x
  2. Step 2: Convert to fraction form
    12,475.73/17,187.26 = 8,692.05/x
  3. Step 3: Cross multiply
    12,475.73x = 17,187.26 × 8,692.05
  4. Step 4: Simplify right side
    12,475.73x = 149,392,393.89
  5. Step 5: Solve for x
    x = 149,392,393.89/12,475.73
  6. Step 6: Final answer
    x = 11,974.65

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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.