Home / 12,539.56-18,806.94-4,745.80

Finding the Fourth Proportional to 12,539.56, 18,806.94 and 4,745.80

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Solution

The fourth proportional to 12,539.56, 18,806.94 and 4,745.80 is: 7,117.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.56 : 18,806.94 = 4,745.80 : x
  2. Step 2: Convert to fraction form
    12,539.56/18,806.94 = 4,745.80/x
  3. Step 3: Cross multiply
    12,539.56x = 18,806.94 × 4,745.80
  4. Step 4: Simplify right side
    12,539.56x = 89,253,975.85
  5. Step 5: Solve for x
    x = 89,253,975.85/12,539.56
  6. Step 6: Final answer
    x = 7,117.79

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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.