Home / 16,786.78-23,163.93-9,711.88

Finding the Fourth Proportional to 16,786.78, 23,163.93 and 9,711.88

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Solution

The fourth proportional to 16,786.78, 23,163.93 and 9,711.88 is: 13,401.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,786.78 : 23,163.93 = 9,711.88 : x
  2. Step 2: Convert to fraction form
    16,786.78/23,163.93 = 9,711.88/x
  3. Step 3: Cross multiply
    16,786.78x = 23,163.93 × 9,711.88
  4. Step 4: Simplify right side
    16,786.78x = 224,965,308.49
  5. Step 5: Solve for x
    x = 224,965,308.49/16,786.78
  6. Step 6: Final answer
    x = 13,401.34

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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.