Home / 11,181.87-15,431.26-6,146.22

Finding the Fourth Proportional to 11,181.87, 15,431.26 and 6,146.22

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Solution

The fourth proportional to 11,181.87, 15,431.26 and 6,146.22 is: 8,481.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.87 : 15,431.26 = 6,146.22 : x
  2. Step 2: Convert to fraction form
    11,181.87/15,431.26 = 6,146.22/x
  3. Step 3: Cross multiply
    11,181.87x = 15,431.26 × 6,146.22
  4. Step 4: Simplify right side
    11,181.87x = 94,843,918.84
  5. Step 5: Solve for x
    x = 94,843,918.84/11,181.87
  6. Step 6: Final answer
    x = 8,481.94

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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.