Home / 12,163.95-18,245.93-3,398.87

Finding the Fourth Proportional to 12,163.95, 18,245.93 and 3,398.87

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Solution

The fourth proportional to 12,163.95, 18,245.93 and 3,398.87 is: 5,098.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.95 : 18,245.93 = 3,398.87 : x
  2. Step 2: Convert to fraction form
    12,163.95/18,245.93 = 3,398.87/x
  3. Step 3: Cross multiply
    12,163.95x = 18,245.93 × 3,398.87
  4. Step 4: Simplify right side
    12,163.95x = 62,015,435.88
  5. Step 5: Solve for x
    x = 62,015,435.88/12,163.95
  6. Step 6: Final answer
    x = 5,098.30

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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.