Home / 18,811.40-25,964.70-11,733.68

Finding the Fourth Proportional to 18,811.40, 25,964.70 and 11,733.68

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Solution

The fourth proportional to 18,811.40, 25,964.70 and 11,733.68 is: 16,195.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,811.40 : 25,964.70 = 11,733.68 : x
  2. Step 2: Convert to fraction form
    18,811.40/25,964.70 = 11,733.68/x
  3. Step 3: Cross multiply
    18,811.40x = 25,964.70 × 11,733.68
  4. Step 4: Simplify right side
    18,811.40x = 304,661,481.10
  5. Step 5: Solve for x
    x = 304,661,481.10/18,811.40
  6. Step 6: Final answer
    x = 16,195.58

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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.