Home / 12,090.54-18,136.01-4,299.15

Finding the Fourth Proportional to 12,090.54, 18,136.01 and 4,299.15

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Solution

The fourth proportional to 12,090.54, 18,136.01 and 4,299.15 is: 6,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.54 : 18,136.01 = 4,299.15 : x
  2. Step 2: Convert to fraction form
    12,090.54/18,136.01 = 4,299.15/x
  3. Step 3: Cross multiply
    12,090.54x = 18,136.01 × 4,299.15
  4. Step 4: Simplify right side
    12,090.54x = 77,969,427.39
  5. Step 5: Solve for x
    x = 77,969,427.39/12,090.54
  6. Step 6: Final answer
    x = 6,448.80

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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.