Home / 12,142.02-18,215.46-3,824.13

Finding the Fourth Proportional to 12,142.02, 18,215.46 and 3,824.13

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Solution

The fourth proportional to 12,142.02, 18,215.46 and 3,824.13 is: 5,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142.02 : 18,215.46 = 3,824.13 : x
  2. Step 2: Convert to fraction form
    12,142.02/18,215.46 = 3,824.13/x
  3. Step 3: Cross multiply
    12,142.02x = 18,215.46 × 3,824.13
  4. Step 4: Simplify right side
    12,142.02x = 69,658,287.05
  5. Step 5: Solve for x
    x = 69,658,287.05/12,142.02
  6. Step 6: Final answer
    x = 5,736.96

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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.