Home / 15,074.43-20,778.73-11,882.54

Finding the Fourth Proportional to 15,074.43, 20,778.73 and 11,882.54

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Solution

The fourth proportional to 15,074.43, 20,778.73 and 11,882.54 is: 16,379.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,074.43 : 20,778.73 = 11,882.54 : x
  2. Step 2: Convert to fraction form
    15,074.43/20,778.73 = 11,882.54/x
  3. Step 3: Cross multiply
    15,074.43x = 20,778.73 × 11,882.54
  4. Step 4: Simplify right side
    15,074.43x = 246,904,090.37
  5. Step 5: Solve for x
    x = 246,904,090.37/15,074.43
  6. Step 6: Final answer
    x = 16,379.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.