Home / 12,238.60-18,352.11-4,745.68

Finding the Fourth Proportional to 12,238.60, 18,352.11 and 4,745.68

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Solution

The fourth proportional to 12,238.60, 18,352.11 and 4,745.68 is: 7,116.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,238.60 : 18,352.11 = 4,745.68 : x
  2. Step 2: Convert to fraction form
    12,238.60/18,352.11 = 4,745.68/x
  3. Step 3: Cross multiply
    12,238.60x = 18,352.11 × 4,745.68
  4. Step 4: Simplify right side
    12,238.60x = 87,093,241.38
  5. Step 5: Solve for x
    x = 87,093,241.38/12,238.60
  6. Step 6: Final answer
    x = 7,116.27

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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.