Home / 18,087.62-24,961.37-10,129.64

Finding the Fourth Proportional to 18,087.62, 24,961.37 and 10,129.64

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Solution

The fourth proportional to 18,087.62, 24,961.37 and 10,129.64 is: 13,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,087.62 : 24,961.37 = 10,129.64 : x
  2. Step 2: Convert to fraction form
    18,087.62/24,961.37 = 10,129.64/x
  3. Step 3: Cross multiply
    18,087.62x = 24,961.37 × 10,129.64
  4. Step 4: Simplify right side
    18,087.62x = 252,849,516.55
  5. Step 5: Solve for x
    x = 252,849,516.55/18,087.62
  6. Step 6: Final answer
    x = 13,979.15

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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.