Home / 18,101.70-24,979.05-10,143.86

Finding the Fourth Proportional to 18,101.70, 24,979.05 and 10,143.86

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Solution

The fourth proportional to 18,101.70, 24,979.05 and 10,143.86 is: 13,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,101.70 : 24,979.05 = 10,143.86 : x
  2. Step 2: Convert to fraction form
    18,101.70/24,979.05 = 10,143.86/x
  3. Step 3: Cross multiply
    18,101.70x = 24,979.05 × 10,143.86
  4. Step 4: Simplify right side
    18,101.70x = 253,383,861.24
  5. Step 5: Solve for x
    x = 253,383,861.24/18,101.70
  6. Step 6: Final answer
    x = 13,997.79

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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.