Home / 12,441.12-17,168.57-7,135.82

Finding the Fourth Proportional to 12,441.12, 17,168.57 and 7,135.82

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Solution

The fourth proportional to 12,441.12, 17,168.57 and 7,135.82 is: 9,847.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.12 : 17,168.57 = 7,135.82 : x
  2. Step 2: Convert to fraction form
    12,441.12/17,168.57 = 7,135.82/x
  3. Step 3: Cross multiply
    12,441.12x = 17,168.57 × 7,135.82
  4. Step 4: Simplify right side
    12,441.12x = 122,511,703.66
  5. Step 5: Solve for x
    x = 122,511,703.66/12,441.12
  6. Step 6: Final answer
    x = 9,847.33

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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.