Home / 11,629.66-16,042.70-8,086.72

Finding the Fourth Proportional to 11,629.66, 16,042.70 and 8,086.72

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Solution

The fourth proportional to 11,629.66, 16,042.70 and 8,086.72 is: 11,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,629.66 : 16,042.70 = 8,086.72 : x
  2. Step 2: Convert to fraction form
    11,629.66/16,042.70 = 8,086.72/x
  3. Step 3: Cross multiply
    11,629.66x = 16,042.70 × 8,086.72
  4. Step 4: Simplify right side
    11,629.66x = 129,732,822.94
  5. Step 5: Solve for x
    x = 129,732,822.94/11,629.66
  6. Step 6: Final answer
    x = 11,155.34

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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.