Home / 11,214.24-16,821.36-3,422.64

Finding the Fourth Proportional to 11,214.24, 16,821.36 and 3,422.64

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Solution

The fourth proportional to 11,214.24, 16,821.36 and 3,422.64 is: 5,133.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.24 : 16,821.36 = 3,422.64 : x
  2. Step 2: Convert to fraction form
    11,214.24/16,821.36 = 3,422.64/x
  3. Step 3: Cross multiply
    11,214.24x = 16,821.36 × 3,422.64
  4. Step 4: Simplify right side
    11,214.24x = 57,573,459.59
  5. Step 5: Solve for x
    x = 57,573,459.59/11,214.24
  6. Step 6: Final answer
    x = 5,133.96

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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.