Home / 18,516.27-27,748.49-13,297.71

Finding the Fourth Proportional to 18,516.27, 27,748.49 and 13,297.71

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Solution

The fourth proportional to 18,516.27, 27,748.49 and 13,297.71 is: 19,927.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.27 : 27,748.49 = 13,297.71 : x
  2. Step 2: Convert to fraction form
    18,516.27/27,748.49 = 13,297.71/x
  3. Step 3: Cross multiply
    18,516.27x = 27,748.49 × 13,297.71
  4. Step 4: Simplify right side
    18,516.27x = 368,991,306.47
  5. Step 5: Solve for x
    x = 368,991,306.47/18,516.27
  6. Step 6: Final answer
    x = 19,927.95

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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.