Home / 11,220.82-16,732.20-11,120.85

Finding the Fourth Proportional to 11,220.82, 16,732.20 and 11,120.85

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Solution

The fourth proportional to 11,220.82, 16,732.20 and 11,120.85 is: 16,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.82 : 16,732.20 = 11,120.85 : x
  2. Step 2: Convert to fraction form
    11,220.82/16,732.20 = 11,120.85/x
  3. Step 3: Cross multiply
    11,220.82x = 16,732.20 × 11,120.85
  4. Step 4: Simplify right side
    11,220.82x = 186,076,265.52
  5. Step 5: Solve for x
    x = 186,076,265.52/11,220.82
  6. Step 6: Final answer
    x = 16,583.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.