Home / 18,090.72-27,136.08-4,942.80

Finding the Fourth Proportional to 18,090.72, 27,136.08 and 4,942.80

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Solution

The fourth proportional to 18,090.72, 27,136.08 and 4,942.80 is: 7,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,090.72 : 27,136.08 = 4,942.80 : x
  2. Step 2: Convert to fraction form
    18,090.72/27,136.08 = 4,942.80/x
  3. Step 3: Cross multiply
    18,090.72x = 27,136.08 × 4,942.80
  4. Step 4: Simplify right side
    18,090.72x = 134,128,216.22
  5. Step 5: Solve for x
    x = 134,128,216.22/18,090.72
  6. Step 6: Final answer
    x = 7,414.20

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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.