Home / 7,853.22-11,781.76-3,906.34

Finding the Fourth Proportional to 7,853.22, 11,781.76 and 3,906.34

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Solution

The fourth proportional to 7,853.22, 11,781.76 and 3,906.34 is: 5,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.22 : 11,781.76 = 3,906.34 : x
  2. Step 2: Convert to fraction form
    7,853.22/11,781.76 = 3,906.34/x
  3. Step 3: Cross multiply
    7,853.22x = 11,781.76 × 3,906.34
  4. Step 4: Simplify right side
    7,853.22x = 46,023,560.36
  5. Step 5: Solve for x
    x = 46,023,560.36/7,853.22
  6. Step 6: Final answer
    x = 5,860.47

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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.