Home / 18,119.32-27,204.94-13,453.72

Finding the Fourth Proportional to 18,119.32, 27,204.94 and 13,453.72

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Solution

The fourth proportional to 18,119.32, 27,204.94 and 13,453.72 is: 20,199.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,119.32 : 27,204.94 = 13,453.72 : x
  2. Step 2: Convert to fraction form
    18,119.32/27,204.94 = 13,453.72/x
  3. Step 3: Cross multiply
    18,119.32x = 27,204.94 × 13,453.72
  4. Step 4: Simplify right side
    18,119.32x = 366,007,645.38
  5. Step 5: Solve for x
    x = 366,007,645.38/18,119.32
  6. Step 6: Final answer
    x = 20,199.86

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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.