Home / 12,200.43-16,836.46-7,163.76

Finding the Fourth Proportional to 12,200.43, 16,836.46 and 7,163.76

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Solution

The fourth proportional to 12,200.43, 16,836.46 and 7,163.76 is: 9,885.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.43 : 16,836.46 = 7,163.76 : x
  2. Step 2: Convert to fraction form
    12,200.43/16,836.46 = 7,163.76/x
  3. Step 3: Cross multiply
    12,200.43x = 16,836.46 × 7,163.76
  4. Step 4: Simplify right side
    12,200.43x = 120,612,358.69
  5. Step 5: Solve for x
    x = 120,612,358.69/12,200.43
  6. Step 6: Final answer
    x = 9,885.91

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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.