Home / 10,907.40-16,361.10-3,984.60

Finding the Fourth Proportional to 10,907.40, 16,361.10 and 3,984.60

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Solution

The fourth proportional to 10,907.40, 16,361.10 and 3,984.60 is: 5,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.40 : 16,361.10 = 3,984.60 : x
  2. Step 2: Convert to fraction form
    10,907.40/16,361.10 = 3,984.60/x
  3. Step 3: Cross multiply
    10,907.40x = 16,361.10 × 3,984.60
  4. Step 4: Simplify right side
    10,907.40x = 65,192,439.06
  5. Step 5: Solve for x
    x = 65,192,439.06/10,907.40
  6. Step 6: Final answer
    x = 5,976.90

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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.