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Finding the Fourth Proportional to 11,010.87, 16,512.08 and 3,988.82

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Solution

The fourth proportional to 11,010.87, 16,512.08 and 3,988.82 is: 5,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,010.87 : 16,512.08 = 3,988.82 : x
  2. Step 2: Convert to fraction form
    11,010.87/16,512.08 = 3,988.82/x
  3. Step 3: Cross multiply
    11,010.87x = 16,512.08 × 3,988.82
  4. Step 4: Simplify right side
    11,010.87x = 65,863,612.44
  5. Step 5: Solve for x
    x = 65,863,612.44/11,010.87
  6. Step 6: Final answer
    x = 5,981.69

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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.