Home / 10,791.12-16,186.56-4,221.84

Finding the Fourth Proportional to 10,791.12, 16,186.56 and 4,221.84

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Solution

The fourth proportional to 10,791.12, 16,186.56 and 4,221.84 is: 6,332.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,791.12 : 16,186.56 = 4,221.84 : x
  2. Step 2: Convert to fraction form
    10,791.12/16,186.56 = 4,221.84/x
  3. Step 3: Cross multiply
    10,791.12x = 16,186.56 × 4,221.84
  4. Step 4: Simplify right side
    10,791.12x = 68,337,066.47
  5. Step 5: Solve for x
    x = 68,337,066.47/10,791.12
  6. Step 6: Final answer
    x = 6,332.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.