Home / 11,990.41-17,985.62-3,226.21

Finding the Fourth Proportional to 11,990.41, 17,985.62 and 3,226.21

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Solution

The fourth proportional to 11,990.41, 17,985.62 and 3,226.21 is: 4,839.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.41 : 17,985.62 = 3,226.21 : x
  2. Step 2: Convert to fraction form
    11,990.41/17,985.62 = 3,226.21/x
  3. Step 3: Cross multiply
    11,990.41x = 17,985.62 × 3,226.21
  4. Step 4: Simplify right side
    11,990.41x = 58,025,281.04
  5. Step 5: Solve for x
    x = 58,025,281.04/11,990.41
  6. Step 6: Final answer
    x = 4,839.31

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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.