Home / 18,144.54-27,216.81-5,665.63

Finding the Fourth Proportional to 18,144.54, 27,216.81 and 5,665.63

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Solution

The fourth proportional to 18,144.54, 27,216.81 and 5,665.63 is: 8,498.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144.54 : 27,216.81 = 5,665.63 : x
  2. Step 2: Convert to fraction form
    18,144.54/27,216.81 = 5,665.63/x
  3. Step 3: Cross multiply
    18,144.54x = 27,216.81 × 5,665.63
  4. Step 4: Simplify right side
    18,144.54x = 154,200,375.24
  5. Step 5: Solve for x
    x = 154,200,375.24/18,144.54
  6. Step 6: Final answer
    x = 8,498.45

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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.