Home / 12,090.36-18,135.66-3,770.04

Finding the Fourth Proportional to 12,090.36, 18,135.66 and 3,770.04

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Solution

The fourth proportional to 12,090.36, 18,135.66 and 3,770.04 is: 5,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.36 : 18,135.66 = 3,770.04 : x
  2. Step 2: Convert to fraction form
    12,090.36/18,135.66 = 3,770.04/x
  3. Step 3: Cross multiply
    12,090.36x = 18,135.66 × 3,770.04
  4. Step 4: Simplify right side
    12,090.36x = 68,372,163.63
  5. Step 5: Solve for x
    x = 68,372,163.63/12,090.36
  6. Step 6: Final answer
    x = 5,655.10

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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.