Home / 18,105.91-24,992.27-11,402.75

Finding the Fourth Proportional to 18,105.91, 24,992.27 and 11,402.75

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Solution

The fourth proportional to 18,105.91, 24,992.27 and 11,402.75 is: 15,739.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,105.91 : 24,992.27 = 11,402.75 : x
  2. Step 2: Convert to fraction form
    18,105.91/24,992.27 = 11,402.75/x
  3. Step 3: Cross multiply
    18,105.91x = 24,992.27 × 11,402.75
  4. Step 4: Simplify right side
    18,105.91x = 284,980,606.74
  5. Step 5: Solve for x
    x = 284,980,606.74/18,105.91
  6. Step 6: Final answer
    x = 15,739.65

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Double scale
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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.