Home / 11,990.66-17,985.98-3,226.46

Finding the Fourth Proportional to 11,990.66, 17,985.98 and 3,226.46

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Solution

The fourth proportional to 11,990.66, 17,985.98 and 3,226.46 is: 4,839.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.66 : 17,985.98 = 3,226.46 : x
  2. Step 2: Convert to fraction form
    11,990.66/17,985.98 = 3,226.46/x
  3. Step 3: Cross multiply
    11,990.66x = 17,985.98 × 3,226.46
  4. Step 4: Simplify right side
    11,990.66x = 58,030,963.17
  5. Step 5: Solve for x
    x = 58,030,963.17/11,990.66
  6. Step 6: Final answer
    x = 4,839.68

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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.