Home / 12,142.44-16,755.66-6,837.75

Finding the Fourth Proportional to 12,142.44, 16,755.66 and 6,837.75

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Solution

The fourth proportional to 12,142.44, 16,755.66 and 6,837.75 is: 9,435.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.44 : 16,755.66 = 6,837.75 : x
  2. Step 2: Convert to fraction form
    12,142.44/16,755.66 = 6,837.75/x
  3. Step 3: Cross multiply
    12,142.44x = 16,755.66 × 6,837.75
  4. Step 4: Simplify right side
    12,142.44x = 114,571,014.17
  5. Step 5: Solve for x
    x = 114,571,014.17/12,142.44
  6. Step 6: Final answer
    x = 9,435.58

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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.