Home / 18,143.36-27,217.56-5,664.48

Finding the Fourth Proportional to 18,143.36, 27,217.56 and 5,664.48

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Solution

The fourth proportional to 18,143.36, 27,217.56 and 5,664.48 is: 8,497.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.36 : 27,217.56 = 5,664.48 : x
  2. Step 2: Convert to fraction form
    18,143.36/27,217.56 = 5,664.48/x
  3. Step 3: Cross multiply
    18,143.36x = 27,217.56 × 5,664.48
  4. Step 4: Simplify right side
    18,143.36x = 154,173,324.27
  5. Step 5: Solve for x
    x = 154,173,324.27/18,143.36
  6. Step 6: Final answer
    x = 8,497.51

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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.