Home / 11,213.84-16,822.56-3,422

Finding the Fourth Proportional to 11,213.84, 16,822.56 and 3,422

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Solution

The fourth proportional to 11,213.84, 16,822.56 and 3,422 is: 5,133.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.84 : 16,822.56 = 3,422 : x
  2. Step 2: Convert to fraction form
    11,213.84/16,822.56 = 3,422/x
  3. Step 3: Cross multiply
    11,213.84x = 16,822.56 × 3,422
  4. Step 4: Simplify right side
    11,213.84x = 57,566,800.32
  5. Step 5: Solve for x
    x = 57,566,800.32/11,213.84
  6. Step 6: Final answer
    x = 5,133.55

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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.