Home / 8,728.99-13,092.19-3,181.03

Finding the Fourth Proportional to 8,728.99, 13,092.19 and 3,181.03

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Solution

The fourth proportional to 8,728.99, 13,092.19 and 3,181.03 is: 4,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.99 : 13,092.19 = 3,181.03 : x
  2. Step 2: Convert to fraction form
    8,728.99/13,092.19 = 3,181.03/x
  3. Step 3: Cross multiply
    8,728.99x = 13,092.19 × 3,181.03
  4. Step 4: Simplify right side
    8,728.99x = 41,646,608.47
  5. Step 5: Solve for x
    x = 41,646,608.47/8,728.99
  6. Step 6: Final answer
    x = 4,771.07

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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.