Home / 12,493.88-18,745.56-3,728.84

Finding the Fourth Proportional to 12,493.88, 18,745.56 and 3,728.84

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Solution

The fourth proportional to 12,493.88, 18,745.56 and 3,728.84 is: 5,594.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.88 : 18,745.56 = 3,728.84 : x
  2. Step 2: Convert to fraction form
    12,493.88/18,745.56 = 3,728.84/x
  3. Step 3: Cross multiply
    12,493.88x = 18,745.56 × 3,728.84
  4. Step 4: Simplify right side
    12,493.88x = 69,899,193.95
  5. Step 5: Solve for x
    x = 69,899,193.95/12,493.88
  6. Step 6: Final answer
    x = 5,594.67

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1.5x scale

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.