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Finding the Fourth Proportional to 11,012, 16,514.76 and 3,218.96

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Solution

The fourth proportional to 11,012, 16,514.76 and 3,218.96 is: 4,827.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,012 : 16,514.76 = 3,218.96 : x
  2. Step 2: Convert to fraction form
    11,012/16,514.76 = 3,218.96/x
  3. Step 3: Cross multiply
    11,012x = 16,514.76 × 3,218.96
  4. Step 4: Simplify right side
    11,012x = 53,160,351.85
  5. Step 5: Solve for x
    x = 53,160,351.85/11,012
  6. Step 6: Final answer
    x = 4,827.49

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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.