Home / 12,512.19-18,765.48-3,745.98

Finding the Fourth Proportional to 12,512.19, 18,765.48 and 3,745.98

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Solution

The fourth proportional to 12,512.19, 18,765.48 and 3,745.98 is: 5,618.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.19 : 18,765.48 = 3,745.98 : x
  2. Step 2: Convert to fraction form
    12,512.19/18,765.48 = 3,745.98/x
  3. Step 3: Cross multiply
    12,512.19x = 18,765.48 × 3,745.98
  4. Step 4: Simplify right side
    12,512.19x = 70,295,112.77
  5. Step 5: Solve for x
    x = 70,295,112.77/12,512.19
  6. Step 6: Final answer
    x = 5,618.13

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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.