Home / 11,181.45-16,772.58-3,390.06

Finding the Fourth Proportional to 11,181.45, 16,772.58 and 3,390.06

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Solution

The fourth proportional to 11,181.45, 16,772.58 and 3,390.06 is: 5,085.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,181.45 : 16,772.58 = 3,390.06 : x
  2. Step 2: Convert to fraction form
    11,181.45/16,772.58 = 3,390.06/x
  3. Step 3: Cross multiply
    11,181.45x = 16,772.58 × 3,390.06
  4. Step 4: Simplify right side
    11,181.45x = 56,860,052.55
  5. Step 5: Solve for x
    x = 56,860,052.55/11,181.45
  6. Step 6: Final answer
    x = 5,085.21

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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.