Home / 12,623.04-18,936.60-3,857.28

Finding the Fourth Proportional to 12,623.04, 18,936.60 and 3,857.28

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Solution

The fourth proportional to 12,623.04, 18,936.60 and 3,857.28 is: 5,786.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,623.04 : 18,936.60 = 3,857.28 : x
  2. Step 2: Convert to fraction form
    12,623.04/18,936.60 = 3,857.28/x
  3. Step 3: Cross multiply
    12,623.04x = 18,936.60 × 3,857.28
  4. Step 4: Simplify right side
    12,623.04x = 73,043,768.45
  5. Step 5: Solve for x
    x = 73,043,768.45/12,623.04
  6. Step 6: Final answer
    x = 5,786.54

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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.