Home / 12,546.55-18,821.62-4,111.25

Finding the Fourth Proportional to 12,546.55, 18,821.62 and 4,111.25

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Solution

The fourth proportional to 12,546.55, 18,821.62 and 4,111.25 is: 6,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.55 : 18,821.62 = 4,111.25 : x
  2. Step 2: Convert to fraction form
    12,546.55/18,821.62 = 4,111.25/x
  3. Step 3: Cross multiply
    12,546.55x = 18,821.62 × 4,111.25
  4. Step 4: Simplify right side
    12,546.55x = 77,380,422.00
  5. Step 5: Solve for x
    x = 77,380,422.00/12,546.55
  6. Step 6: Final answer
    x = 6,167.46

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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.