Home / 6,127.11-8,447.94-5,181.21

Finding the Fourth Proportional to 6,127.11, 8,447.94 and 5,181.21

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Solution

The fourth proportional to 6,127.11, 8,447.94 and 5,181.21 is: 7,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,127.11 : 8,447.94 = 5,181.21 : x
  2. Step 2: Convert to fraction form
    6,127.11/8,447.94 = 5,181.21/x
  3. Step 3: Cross multiply
    6,127.11x = 8,447.94 × 5,181.21
  4. Step 4: Simplify right side
    6,127.11x = 43,770,551.21
  5. Step 5: Solve for x
    x = 43,770,551.21/6,127.11
  6. Step 6: Final answer
    x = 7,143.75

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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.