Home / 11,213.40-16,821.94-3,817.10

Finding the Fourth Proportional to 11,213.40, 16,821.94 and 3,817.10

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Solution

The fourth proportional to 11,213.40, 16,821.94 and 3,817.10 is: 5,726.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.40 : 16,821.94 = 3,817.10 : x
  2. Step 2: Convert to fraction form
    11,213.40/16,821.94 = 3,817.10/x
  3. Step 3: Cross multiply
    11,213.40x = 16,821.94 × 3,817.10
  4. Step 4: Simplify right side
    11,213.40x = 64,211,027.17
  5. Step 5: Solve for x
    x = 64,211,027.17/11,213.40
  6. Step 6: Final answer
    x = 5,726.28

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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.