Home / 12,376.96-18,558.02-3,939.82

Finding the Fourth Proportional to 12,376.96, 18,558.02 and 3,939.82

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Solution

The fourth proportional to 12,376.96, 18,558.02 and 3,939.82 is: 5,907.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.96 : 18,558.02 = 3,939.82 : x
  2. Step 2: Convert to fraction form
    12,376.96/18,558.02 = 3,939.82/x
  3. Step 3: Cross multiply
    12,376.96x = 18,558.02 × 3,939.82
  4. Step 4: Simplify right side
    12,376.96x = 73,115,240.08
  5. Step 5: Solve for x
    x = 73,115,240.08/12,376.96
  6. Step 6: Final answer
    x = 5,907.37

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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.