Home / 13,730.24-18,945.25-11,839.84

Finding the Fourth Proportional to 13,730.24, 18,945.25 and 11,839.84

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Solution

The fourth proportional to 13,730.24, 18,945.25 and 11,839.84 is: 16,336.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,730.24 : 18,945.25 = 11,839.84 : x
  2. Step 2: Convert to fraction form
    13,730.24/18,945.25 = 11,839.84/x
  3. Step 3: Cross multiply
    13,730.24x = 18,945.25 × 11,839.84
  4. Step 4: Simplify right side
    13,730.24x = 224,308,651.80
  5. Step 5: Solve for x
    x = 224,308,651.80/13,730.24
  6. Step 6: Final answer
    x = 16,336.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.