Home / 12,250.68-16,900.48-8,163.40

Finding the Fourth Proportional to 12,250.68, 16,900.48 and 8,163.40

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Solution

The fourth proportional to 12,250.68, 16,900.48 and 8,163.40 is: 11,261.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,250.68 : 16,900.48 = 8,163.40 : x
  2. Step 2: Convert to fraction form
    12,250.68/16,900.48 = 8,163.40/x
  3. Step 3: Cross multiply
    12,250.68x = 16,900.48 × 8,163.40
  4. Step 4: Simplify right side
    12,250.68x = 137,965,378.43
  5. Step 5: Solve for x
    x = 137,965,378.43/12,250.68
  6. Step 6: Final answer
    x = 11,261.85

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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.