Home / 18,613.73-25,687.04-10,115.91

Finding the Fourth Proportional to 18,613.73, 25,687.04 and 10,115.91

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Solution

The fourth proportional to 18,613.73, 25,687.04 and 10,115.91 is: 13,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.73 : 25,687.04 = 10,115.91 : x
  2. Step 2: Convert to fraction form
    18,613.73/25,687.04 = 10,115.91/x
  3. Step 3: Cross multiply
    18,613.73x = 25,687.04 × 10,115.91
  4. Step 4: Simplify right side
    18,613.73x = 259,847,734.23
  5. Step 5: Solve for x
    x = 259,847,734.23/18,613.73
  6. Step 6: Final answer
    x = 13,960.01

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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.