Home / 11,791.39-16,295.45-9,663.56

Finding the Fourth Proportional to 11,791.39, 16,295.45 and 9,663.56

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Solution

The fourth proportional to 11,791.39, 16,295.45 and 9,663.56 is: 13,354.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,791.39 : 16,295.45 = 9,663.56 : x
  2. Step 2: Convert to fraction form
    11,791.39/16,295.45 = 9,663.56/x
  3. Step 3: Cross multiply
    11,791.39x = 16,295.45 × 9,663.56
  4. Step 4: Simplify right side
    11,791.39x = 157,472,058.80
  5. Step 5: Solve for x
    x = 157,472,058.80/11,791.39
  6. Step 6: Final answer
    x = 13,354.83

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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.