Home / 18,515.37-27,708.47-15,144.66

Finding the Fourth Proportional to 18,515.37, 27,708.47 and 15,144.66

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Solution

The fourth proportional to 18,515.37, 27,708.47 and 15,144.66 is: 22,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,515.37 : 27,708.47 = 15,144.66 : x
  2. Step 2: Convert to fraction form
    18,515.37/27,708.47 = 15,144.66/x
  3. Step 3: Cross multiply
    18,515.37x = 27,708.47 × 15,144.66
  4. Step 4: Simplify right side
    18,515.37x = 419,635,357.27
  5. Step 5: Solve for x
    x = 419,635,357.27/18,515.37
  6. Step 6: Final answer
    x = 22,664.16

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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.