Home / 12,171.15-18,249.74-4,766.94

Finding the Fourth Proportional to 12,171.15, 18,249.74 and 4,766.94

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Solution

The fourth proportional to 12,171.15, 18,249.74 and 4,766.94 is: 7,147.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.15 : 18,249.74 = 4,766.94 : x
  2. Step 2: Convert to fraction form
    12,171.15/18,249.74 = 4,766.94/x
  3. Step 3: Cross multiply
    12,171.15x = 18,249.74 × 4,766.94
  4. Step 4: Simplify right side
    12,171.15x = 86,995,415.60
  5. Step 5: Solve for x
    x = 86,995,415.60/12,171.15
  6. Step 6: Final answer
    x = 7,147.67

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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.