Home / 11,243.20-16,874.40-5,012.80

Finding the Fourth Proportional to 11,243.20, 16,874.40 and 5,012.80

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Solution

The fourth proportional to 11,243.20, 16,874.40 and 5,012.80 is: 7,523.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.20 : 16,874.40 = 5,012.80 : x
  2. Step 2: Convert to fraction form
    11,243.20/16,874.40 = 5,012.80/x
  3. Step 3: Cross multiply
    11,243.20x = 16,874.40 × 5,012.80
  4. Step 4: Simplify right side
    11,243.20x = 84,587,992.32
  5. Step 5: Solve for x
    x = 84,587,992.32/11,243.20
  6. Step 6: Final answer
    x = 7,523.48

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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.