Home / 12,195.08-18,286.85-5,619.32

Finding the Fourth Proportional to 12,195.08, 18,286.85 and 5,619.32

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Solution

The fourth proportional to 12,195.08, 18,286.85 and 5,619.32 is: 8,426.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.08 : 18,286.85 = 5,619.32 : x
  2. Step 2: Convert to fraction form
    12,195.08/18,286.85 = 5,619.32/x
  3. Step 3: Cross multiply
    12,195.08x = 18,286.85 × 5,619.32
  4. Step 4: Simplify right side
    12,195.08x = 102,759,661.94
  5. Step 5: Solve for x
    x = 102,759,661.94/12,195.08
  6. Step 6: Final answer
    x = 8,426.32

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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.