Home / 18,144.48-27,216.71-5,665.57

Finding the Fourth Proportional to 18,144.48, 27,216.71 and 5,665.57

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Solution

The fourth proportional to 18,144.48, 27,216.71 and 5,665.57 is: 8,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.48 : 27,216.71 = 5,665.57 : x
  2. Step 2: Convert to fraction form
    18,144.48/27,216.71 = 5,665.57/x
  3. Step 3: Cross multiply
    18,144.48x = 27,216.71 × 5,665.57
  4. Step 4: Simplify right side
    18,144.48x = 154,198,149.43
  5. Step 5: Solve for x
    x = 154,198,149.43/18,144.48
  6. Step 6: Final answer
    x = 8,498.35

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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.