Home / 12,409.97-18,614.05-3,645.57

Finding the Fourth Proportional to 12,409.97, 18,614.05 and 3,645.57

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Solution

The fourth proportional to 12,409.97, 18,614.05 and 3,645.57 is: 5,468.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,409.97 : 18,614.05 = 3,645.57 : x
  2. Step 2: Convert to fraction form
    12,409.97/18,614.05 = 3,645.57/x
  3. Step 3: Cross multiply
    12,409.97x = 18,614.05 × 3,645.57
  4. Step 4: Simplify right side
    12,409.97x = 67,858,804.03
  5. Step 5: Solve for x
    x = 67,858,804.03/12,409.97
  6. Step 6: Final answer
    x = 5,468.09

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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.