Home / 18,388.72-27,581.64-6,704.56

Finding the Fourth Proportional to 18,388.72, 27,581.64 and 6,704.56

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Solution

The fourth proportional to 18,388.72, 27,581.64 and 6,704.56 is: 10,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,388.72 : 27,581.64 = 6,704.56 : x
  2. Step 2: Convert to fraction form
    18,388.72/27,581.64 = 6,704.56/x
  3. Step 3: Cross multiply
    18,388.72x = 27,581.64 × 6,704.56
  4. Step 4: Simplify right side
    18,388.72x = 184,922,760.28
  5. Step 5: Solve for x
    x = 184,922,760.28/18,388.72
  6. Step 6: Final answer
    x = 10,056.31

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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.