Home / 12,236.63-18,356.27-3,914.69

Finding the Fourth Proportional to 12,236.63, 18,356.27 and 3,914.69

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Solution

The fourth proportional to 12,236.63, 18,356.27 and 3,914.69 is: 5,872.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236.63 : 18,356.27 = 3,914.69 : x
  2. Step 2: Convert to fraction form
    12,236.63/18,356.27 = 3,914.69/x
  3. Step 3: Cross multiply
    12,236.63x = 18,356.27 × 3,914.69
  4. Step 4: Simplify right side
    12,236.63x = 71,858,995.25
  5. Step 5: Solve for x
    x = 71,858,995.25/12,236.63
  6. Step 6: Final answer
    x = 5,872.45

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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.