Home / 12,163.95-18,245.91-9,394.66

Finding the Fourth Proportional to 12,163.95, 18,245.91 and 9,394.66

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Solution

The fourth proportional to 12,163.95, 18,245.91 and 9,394.66 is: 14,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.95 : 18,245.91 = 9,394.66 : x
  2. Step 2: Convert to fraction form
    12,163.95/18,245.91 = 9,394.66/x
  3. Step 3: Cross multiply
    12,163.95x = 18,245.91 × 9,394.66
  4. Step 4: Simplify right side
    12,163.95x = 171,414,120.84
  5. Step 5: Solve for x
    x = 171,414,120.84/12,163.95
  6. Step 6: Final answer
    x = 14,091.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.