Home / 15,042.27-20,755.22-10,198.71

Finding the Fourth Proportional to 15,042.27, 20,755.22 and 10,198.71

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Solution

The fourth proportional to 15,042.27, 20,755.22 and 10,198.71 is: 14,072.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,042.27 : 20,755.22 = 10,198.71 : x
  2. Step 2: Convert to fraction form
    15,042.27/20,755.22 = 10,198.71/x
  3. Step 3: Cross multiply
    15,042.27x = 20,755.22 × 10,198.71
  4. Step 4: Simplify right side
    15,042.27x = 211,676,418.77
  5. Step 5: Solve for x
    x = 211,676,418.77/15,042.27
  6. Step 6: Final answer
    x = 14,072.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.