Home / 18,150.28-27,218.53-7,055.61

Finding the Fourth Proportional to 18,150.28, 27,218.53 and 7,055.61

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Solution

The fourth proportional to 18,150.28, 27,218.53 and 7,055.61 is: 10,580.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150.28 : 27,218.53 = 7,055.61 : x
  2. Step 2: Convert to fraction form
    18,150.28/27,218.53 = 7,055.61/x
  3. Step 3: Cross multiply
    18,150.28x = 27,218.53 × 7,055.61
  4. Step 4: Simplify right side
    18,150.28x = 192,043,239.20
  5. Step 5: Solve for x
    x = 192,043,239.20/18,150.28
  6. Step 6: Final answer
    x = 10,580.73

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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.