Home / 12,163.04-16,784.97-6,857.90

Finding the Fourth Proportional to 12,163.04, 16,784.97 and 6,857.90

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Solution

The fourth proportional to 12,163.04, 16,784.97 and 6,857.90 is: 9,463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.04 : 16,784.97 = 6,857.90 : x
  2. Step 2: Convert to fraction form
    12,163.04/16,784.97 = 6,857.90/x
  3. Step 3: Cross multiply
    12,163.04x = 16,784.97 × 6,857.90
  4. Step 4: Simplify right side
    12,163.04x = 115,109,645.76
  5. Step 5: Solve for x
    x = 115,109,645.76/12,163.04
  6. Step 6: Final answer
    x = 9,463.89

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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.