Home / 9,090.20-13,635.30-3,906.20

Finding the Fourth Proportional to 9,090.20, 13,635.30 and 3,906.20

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Solution

The fourth proportional to 9,090.20, 13,635.30 and 3,906.20 is: 5,859.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.20 : 13,635.30 = 3,906.20 : x
  2. Step 2: Convert to fraction form
    9,090.20/13,635.30 = 3,906.20/x
  3. Step 3: Cross multiply
    9,090.20x = 13,635.30 × 3,906.20
  4. Step 4: Simplify right side
    9,090.20x = 53,262,208.86
  5. Step 5: Solve for x
    x = 53,262,208.86/9,090.20
  6. Step 6: Final answer
    x = 5,859.30

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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.