Home / 10,992.20-16,493.72-5,147.80

Finding the Fourth Proportional to 10,992.20, 16,493.72 and 5,147.80

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Solution

The fourth proportional to 10,992.20, 16,493.72 and 5,147.80 is: 7,724.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,992.20 : 16,493.72 = 5,147.80 : x
  2. Step 2: Convert to fraction form
    10,992.20/16,493.72 = 5,147.80/x
  3. Step 3: Cross multiply
    10,992.20x = 16,493.72 × 5,147.80
  4. Step 4: Simplify right side
    10,992.20x = 84,906,371.82
  5. Step 5: Solve for x
    x = 84,906,371.82/10,992.20
  6. Step 6: Final answer
    x = 7,724.24

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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.