Home / 16,512.21-22,786.85-9,438.78

Finding the Fourth Proportional to 16,512.21, 22,786.85 and 9,438.78

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Solution

The fourth proportional to 16,512.21, 22,786.85 and 9,438.78 is: 13,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,512.21 : 22,786.85 = 9,438.78 : x
  2. Step 2: Convert to fraction form
    16,512.21/22,786.85 = 9,438.78/x
  3. Step 3: Cross multiply
    16,512.21x = 22,786.85 × 9,438.78
  4. Step 4: Simplify right side
    16,512.21x = 215,080,016.85
  5. Step 5: Solve for x
    x = 215,080,016.85/16,512.21
  6. Step 6: Final answer
    x = 13,025.51

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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.