Home / 12,644.30-18,962.37-4,208.56

Finding the Fourth Proportional to 12,644.30, 18,962.37 and 4,208.56

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Solution

The fourth proportional to 12,644.30, 18,962.37 and 4,208.56 is: 6,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.30 : 18,962.37 = 4,208.56 : x
  2. Step 2: Convert to fraction form
    12,644.30/18,962.37 = 4,208.56/x
  3. Step 3: Cross multiply
    12,644.30x = 18,962.37 × 4,208.56
  4. Step 4: Simplify right side
    12,644.30x = 79,804,224.48
  5. Step 5: Solve for x
    x = 79,804,224.48/12,644.30
  6. Step 6: Final answer
    x = 6,311.48

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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.