Home / 12,205.13-18,318.23-5,969.75

Finding the Fourth Proportional to 12,205.13, 18,318.23 and 5,969.75

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Solution

The fourth proportional to 12,205.13, 18,318.23 and 5,969.75 is: 8,959.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.13 : 18,318.23 = 5,969.75 : x
  2. Step 2: Convert to fraction form
    12,205.13/18,318.23 = 5,969.75/x
  3. Step 3: Cross multiply
    12,205.13x = 18,318.23 × 5,969.75
  4. Step 4: Simplify right side
    12,205.13x = 109,355,223.69
  5. Step 5: Solve for x
    x = 109,355,223.69/12,205.13
  6. Step 6: Final answer
    x = 8,959.78

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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.