Home / 12,163.11-16,784.87-6,857.94

Finding the Fourth Proportional to 12,163.11, 16,784.87 and 6,857.94

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Solution

The fourth proportional to 12,163.11, 16,784.87 and 6,857.94 is: 9,463.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.11 : 16,784.87 = 6,857.94 : x
  2. Step 2: Convert to fraction form
    12,163.11/16,784.87 = 6,857.94/x
  3. Step 3: Cross multiply
    12,163.11x = 16,784.87 × 6,857.94
  4. Step 4: Simplify right side
    12,163.11x = 115,109,597.08
  5. Step 5: Solve for x
    x = 115,109,597.08/12,163.11
  6. Step 6: Final answer
    x = 9,463.83

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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.