Home / 18,857.34-28,297.94-10,542.81

Finding the Fourth Proportional to 18,857.34, 28,297.94 and 10,542.81

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Solution

The fourth proportional to 18,857.34, 28,297.94 and 10,542.81 is: 15,820.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.34 : 28,297.94 = 10,542.81 : x
  2. Step 2: Convert to fraction form
    18,857.34/28,297.94 = 10,542.81/x
  3. Step 3: Cross multiply
    18,857.34x = 28,297.94 × 10,542.81
  4. Step 4: Simplify right side
    18,857.34x = 298,339,752.10
  5. Step 5: Solve for x
    x = 298,339,752.10/18,857.34
  6. Step 6: Final answer
    x = 15,820.88

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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.