Home / 11,086.12-16,637.64-4,072.78

Finding the Fourth Proportional to 11,086.12, 16,637.64 and 4,072.78

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Solution

The fourth proportional to 11,086.12, 16,637.64 and 4,072.78 is: 6,112.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,086.12 : 16,637.64 = 4,072.78 : x
  2. Step 2: Convert to fraction form
    11,086.12/16,637.64 = 4,072.78/x
  3. Step 3: Cross multiply
    11,086.12x = 16,637.64 × 4,072.78
  4. Step 4: Simplify right side
    11,086.12x = 67,761,447.44
  5. Step 5: Solve for x
    x = 67,761,447.44/11,086.12
  6. Step 6: Final answer
    x = 6,112.28

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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.