Home / 12,090.22-18,135.96-3,324.94

Finding the Fourth Proportional to 12,090.22, 18,135.96 and 3,324.94

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Solution

The fourth proportional to 12,090.22, 18,135.96 and 3,324.94 is: 4,987.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.22 : 18,135.96 = 3,324.94 : x
  2. Step 2: Convert to fraction form
    12,090.22/18,135.96 = 3,324.94/x
  3. Step 3: Cross multiply
    12,090.22x = 18,135.96 × 3,324.94
  4. Step 4: Simplify right side
    12,090.22x = 60,300,978.84
  5. Step 5: Solve for x
    x = 60,300,978.84/12,090.22
  6. Step 6: Final answer
    x = 4,987.58

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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.