Home / 12,090.96-18,136.44-5,512.50

Finding the Fourth Proportional to 12,090.96, 18,136.44 and 5,512.50

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Solution

The fourth proportional to 12,090.96, 18,136.44 and 5,512.50 is: 8,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.96 : 18,136.44 = 5,512.50 : x
  2. Step 2: Convert to fraction form
    12,090.96/18,136.44 = 5,512.50/x
  3. Step 3: Cross multiply
    12,090.96x = 18,136.44 × 5,512.50
  4. Step 4: Simplify right side
    12,090.96x = 99,977,125.50
  5. Step 5: Solve for x
    x = 99,977,125.50/12,090.96
  6. Step 6: Final answer
    x = 8,268.75

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Similar ratio
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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.