Home / 18,857.24-28,297.79-10,542.71

Finding the Fourth Proportional to 18,857.24, 28,297.79 and 10,542.71

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Solution

The fourth proportional to 18,857.24, 28,297.79 and 10,542.71 is: 15,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.24 : 28,297.79 = 10,542.71 : x
  2. Step 2: Convert to fraction form
    18,857.24/28,297.79 = 10,542.71/x
  3. Step 3: Cross multiply
    18,857.24x = 28,297.79 × 10,542.71
  4. Step 4: Simplify right side
    18,857.24x = 298,335,393.61
  5. Step 5: Solve for x
    x = 298,335,393.61/18,857.24
  6. Step 6: Final answer
    x = 15,820.73

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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.