Home / 7,837.22-11,755.74-3,940.76

Finding the Fourth Proportional to 7,837.22, 11,755.74 and 3,940.76

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Solution

The fourth proportional to 7,837.22, 11,755.74 and 3,940.76 is: 5,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,837.22 : 11,755.74 = 3,940.76 : x
  2. Step 2: Convert to fraction form
    7,837.22/11,755.74 = 3,940.76/x
  3. Step 3: Cross multiply
    7,837.22x = 11,755.74 × 3,940.76
  4. Step 4: Simplify right side
    7,837.22x = 46,326,549.96
  5. Step 5: Solve for x
    x = 46,326,549.96/7,837.22
  6. Step 6: Final answer
    x = 5,911.09

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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.