Home / 11,214.55-16,821.22-3,422.75

Finding the Fourth Proportional to 11,214.55, 16,821.22 and 3,422.75

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Solution

The fourth proportional to 11,214.55, 16,821.22 and 3,422.75 is: 5,133.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.55 : 16,821.22 = 3,422.75 : x
  2. Step 2: Convert to fraction form
    11,214.55/16,821.22 = 3,422.75/x
  3. Step 3: Cross multiply
    11,214.55x = 16,821.22 × 3,422.75
  4. Step 4: Simplify right side
    11,214.55x = 57,574,813.64
  5. Step 5: Solve for x
    x = 57,574,813.64/11,214.55
  6. Step 6: Final answer
    x = 5,133.94

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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.