Home / 12,208.05-18,313.90-4,418.69

Finding the Fourth Proportional to 12,208.05, 18,313.90 and 4,418.69

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Solution

The fourth proportional to 12,208.05, 18,313.90 and 4,418.69 is: 6,628.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208.05 : 18,313.90 = 4,418.69 : x
  2. Step 2: Convert to fraction form
    12,208.05/18,313.90 = 4,418.69/x
  3. Step 3: Cross multiply
    12,208.05x = 18,313.90 × 4,418.69
  4. Step 4: Simplify right side
    12,208.05x = 80,923,369.03
  5. Step 5: Solve for x
    x = 80,923,369.03/12,208.05
  6. Step 6: Final answer
    x = 6,628.69

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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.