Home / 12,090.08-18,136.56-4,299.68

Finding the Fourth Proportional to 12,090.08, 18,136.56 and 4,299.68

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Solution

The fourth proportional to 12,090.08, 18,136.56 and 4,299.68 is: 6,450.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.08 : 18,136.56 = 4,299.68 : x
  2. Step 2: Convert to fraction form
    12,090.08/18,136.56 = 4,299.68/x
  3. Step 3: Cross multiply
    12,090.08x = 18,136.56 × 4,299.68
  4. Step 4: Simplify right side
    12,090.08x = 77,981,404.30
  5. Step 5: Solve for x
    x = 77,981,404.30/12,090.08
  6. Step 6: Final answer
    x = 6,450.03

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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.