Home / 12,481.60-18,716.84-4,684.90

Finding the Fourth Proportional to 12,481.60, 18,716.84 and 4,684.90

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Solution

The fourth proportional to 12,481.60, 18,716.84 and 4,684.90 is: 7,025.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.60 : 18,716.84 = 4,684.90 : x
  2. Step 2: Convert to fraction form
    12,481.60/18,716.84 = 4,684.90/x
  3. Step 3: Cross multiply
    12,481.60x = 18,716.84 × 4,684.90
  4. Step 4: Simplify right side
    12,481.60x = 87,686,523.72
  5. Step 5: Solve for x
    x = 87,686,523.72/12,481.60
  6. Step 6: Final answer
    x = 7,025.26

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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.