Home / 12,469.98-18,708.48-3,705.24

Finding the Fourth Proportional to 12,469.98, 18,708.48 and 3,705.24

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Solution

The fourth proportional to 12,469.98, 18,708.48 and 3,705.24 is: 5,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.98 : 18,708.48 = 3,705.24 : x
  2. Step 2: Convert to fraction form
    12,469.98/18,708.48 = 3,705.24/x
  3. Step 3: Cross multiply
    12,469.98x = 18,708.48 × 3,705.24
  4. Step 4: Simplify right side
    12,469.98x = 69,319,408.44
  5. Step 5: Solve for x
    x = 69,319,408.44/12,469.98
  6. Step 6: Final answer
    x = 5,558.90

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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.