Home / 10,775.40-16,163.12-3,380.43

Finding the Fourth Proportional to 10,775.40, 16,163.12 and 3,380.43

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Solution

The fourth proportional to 10,775.40, 16,163.12 and 3,380.43 is: 5,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,775.40 : 16,163.12 = 3,380.43 : x
  2. Step 2: Convert to fraction form
    10,775.40/16,163.12 = 3,380.43/x
  3. Step 3: Cross multiply
    10,775.40x = 16,163.12 × 3,380.43
  4. Step 4: Simplify right side
    10,775.40x = 54,638,224.57
  5. Step 5: Solve for x
    x = 54,638,224.57/10,775.40
  6. Step 6: Final answer
    x = 5,070.64

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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.