Home / 11,821.06-17,731.41-3,055.90

Finding the Fourth Proportional to 11,821.06, 17,731.41 and 3,055.90

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Solution

The fourth proportional to 11,821.06, 17,731.41 and 3,055.90 is: 4,583.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.06 : 17,731.41 = 3,055.90 : x
  2. Step 2: Convert to fraction form
    11,821.06/17,731.41 = 3,055.90/x
  3. Step 3: Cross multiply
    11,821.06x = 17,731.41 × 3,055.90
  4. Step 4: Simplify right side
    11,821.06x = 54,185,415.82
  5. Step 5: Solve for x
    x = 54,185,415.82/11,821.06
  6. Step 6: Final answer
    x = 4,583.80

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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.