Home / 12,169.24-18,247.32-6,243.68

Finding the Fourth Proportional to 12,169.24, 18,247.32 and 6,243.68

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Solution

The fourth proportional to 12,169.24, 18,247.32 and 6,243.68 is: 9,362.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.24 : 18,247.32 = 6,243.68 : x
  2. Step 2: Convert to fraction form
    12,169.24/18,247.32 = 6,243.68/x
  3. Step 3: Cross multiply
    12,169.24x = 18,247.32 × 6,243.68
  4. Step 4: Simplify right side
    12,169.24x = 113,930,426.94
  5. Step 5: Solve for x
    x = 113,930,426.94/12,169.24
  6. Step 6: Final answer
    x = 9,362.16

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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.