Home / 18,162.40-27,204.72-11,215.84

Finding the Fourth Proportional to 18,162.40, 27,204.72 and 11,215.84

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Solution

The fourth proportional to 18,162.40, 27,204.72 and 11,215.84 is: 16,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,162.40 : 27,204.72 = 11,215.84 : x
  2. Step 2: Convert to fraction form
    18,162.40/27,204.72 = 11,215.84/x
  3. Step 3: Cross multiply
    18,162.40x = 27,204.72 × 11,215.84
  4. Step 4: Simplify right side
    18,162.40x = 305,123,786.76
  5. Step 5: Solve for x
    x = 305,123,786.76/18,162.40
  6. Step 6: Final answer
    x = 16,799.75

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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.