Home / 12,021.24-18,034.20-3,699.80

Finding the Fourth Proportional to 12,021.24, 18,034.20 and 3,699.80

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Solution

The fourth proportional to 12,021.24, 18,034.20 and 3,699.80 is: 5,550.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,021.24 : 18,034.20 = 3,699.80 : x
  2. Step 2: Convert to fraction form
    12,021.24/18,034.20 = 3,699.80/x
  3. Step 3: Cross multiply
    12,021.24x = 18,034.20 × 3,699.80
  4. Step 4: Simplify right side
    12,021.24x = 66,722,933.16
  5. Step 5: Solve for x
    x = 66,722,933.16/12,021.24
  6. Step 6: Final answer
    x = 5,550.42

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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.