Home / 12,090.96-18,136.53-3,326.36

Finding the Fourth Proportional to 12,090.96, 18,136.53 and 3,326.36

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Solution

The fourth proportional to 12,090.96, 18,136.53 and 3,326.36 is: 4,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.96 : 18,136.53 = 3,326.36 : x
  2. Step 2: Convert to fraction form
    12,090.96/18,136.53 = 3,326.36/x
  3. Step 3: Cross multiply
    12,090.96x = 18,136.53 × 3,326.36
  4. Step 4: Simplify right side
    12,090.96x = 60,328,537.25
  5. Step 5: Solve for x
    x = 60,328,537.25/12,090.96
  6. Step 6: Final answer
    x = 4,989.56

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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.