Home / 12,198-18,286.14-4,405.08

Finding the Fourth Proportional to 12,198, 18,286.14 and 4,405.08

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Solution

The fourth proportional to 12,198, 18,286.14 and 4,405.08 is: 6,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,198 : 18,286.14 = 4,405.08 : x
  2. Step 2: Convert to fraction form
    12,198/18,286.14 = 4,405.08/x
  3. Step 3: Cross multiply
    12,198x = 18,286.14 × 4,405.08
  4. Step 4: Simplify right side
    12,198x = 80,551,909.59
  5. Step 5: Solve for x
    x = 80,551,909.59/12,198
  6. Step 6: Final answer
    x = 6,603.70

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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.