Home / 10,949.90-16,420.80-3,554.60

Finding the Fourth Proportional to 10,949.90, 16,420.80 and 3,554.60

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Solution

The fourth proportional to 10,949.90, 16,420.80 and 3,554.60 is: 5,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,949.90 : 16,420.80 = 3,554.60 : x
  2. Step 2: Convert to fraction form
    10,949.90/16,420.80 = 3,554.60/x
  3. Step 3: Cross multiply
    10,949.90x = 16,420.80 × 3,554.60
  4. Step 4: Simplify right side
    10,949.90x = 58,369,375.68
  5. Step 5: Solve for x
    x = 58,369,375.68/10,949.90
  6. Step 6: Final answer
    x = 5,330.59

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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.