Home / 18,514.72-27,733.20-13,513.78

Finding the Fourth Proportional to 18,514.72, 27,733.20 and 13,513.78

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Solution

The fourth proportional to 18,514.72, 27,733.20 and 13,513.78 is: 20,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,514.72 : 27,733.20 = 13,513.78 : x
  2. Step 2: Convert to fraction form
    18,514.72/27,733.20 = 13,513.78/x
  3. Step 3: Cross multiply
    18,514.72x = 27,733.20 × 13,513.78
  4. Step 4: Simplify right side
    18,514.72x = 374,780,363.50
  5. Step 5: Solve for x
    x = 374,780,363.50/18,514.72
  6. Step 6: Final answer
    x = 20,242.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.