Home / 18,619.32-27,921.42-6,933.36

Finding the Fourth Proportional to 18,619.32, 27,921.42 and 6,933.36

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Solution

The fourth proportional to 18,619.32, 27,921.42 and 6,933.36 is: 10,397.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,619.32 : 27,921.42 = 6,933.36 : x
  2. Step 2: Convert to fraction form
    18,619.32/27,921.42 = 6,933.36/x
  3. Step 3: Cross multiply
    18,619.32x = 27,921.42 × 6,933.36
  4. Step 4: Simplify right side
    18,619.32x = 193,589,256.57
  5. Step 5: Solve for x
    x = 193,589,256.57/18,619.32
  6. Step 6: Final answer
    x = 10,397.22

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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.