Home / 12,105.33-18,161.64-4,314.75

Finding the Fourth Proportional to 12,105.33, 18,161.64 and 4,314.75

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Solution

The fourth proportional to 12,105.33, 18,161.64 and 4,314.75 is: 6,473.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,105.33 : 18,161.64 = 4,314.75 : x
  2. Step 2: Convert to fraction form
    12,105.33/18,161.64 = 4,314.75/x
  3. Step 3: Cross multiply
    12,105.33x = 18,161.64 × 4,314.75
  4. Step 4: Simplify right side
    12,105.33x = 78,362,936.19
  5. Step 5: Solve for x
    x = 78,362,936.19/12,105.33
  6. Step 6: Final answer
    x = 6,473.42

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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.