Home / 11,017.80-16,505.87-8,540.49

Finding the Fourth Proportional to 11,017.80, 16,505.87 and 8,540.49

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Solution

The fourth proportional to 11,017.80, 16,505.87 and 8,540.49 is: 12,794.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,017.80 : 16,505.87 = 8,540.49 : x
  2. Step 2: Convert to fraction form
    11,017.80/16,505.87 = 8,540.49/x
  3. Step 3: Cross multiply
    11,017.80x = 16,505.87 × 8,540.49
  4. Step 4: Simplify right side
    11,017.80x = 140,968,174.97
  5. Step 5: Solve for x
    x = 140,968,174.97/11,017.80
  6. Step 6: Final answer
    x = 12,794.58

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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.