Home / 18,689.38-25,791.22-10,305.88

Finding the Fourth Proportional to 18,689.38, 25,791.22 and 10,305.88

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Solution

The fourth proportional to 18,689.38, 25,791.22 and 10,305.88 is: 14,222.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,689.38 : 25,791.22 = 10,305.88 : x
  2. Step 2: Convert to fraction form
    18,689.38/25,791.22 = 10,305.88/x
  3. Step 3: Cross multiply
    18,689.38x = 25,791.22 × 10,305.88
  4. Step 4: Simplify right side
    18,689.38x = 265,801,218.37
  5. Step 5: Solve for x
    x = 265,801,218.37/18,689.38
  6. Step 6: Final answer
    x = 14,222.05

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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.