Home / 12,551.87-18,816.61-4,766.15

Finding the Fourth Proportional to 12,551.87, 18,816.61 and 4,766.15

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Solution

The fourth proportional to 12,551.87, 18,816.61 and 4,766.15 is: 7,144.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,551.87 : 18,816.61 = 4,766.15 : x
  2. Step 2: Convert to fraction form
    12,551.87/18,816.61 = 4,766.15/x
  3. Step 3: Cross multiply
    12,551.87x = 18,816.61 × 4,766.15
  4. Step 4: Simplify right side
    12,551.87x = 89,682,785.75
  5. Step 5: Solve for x
    x = 89,682,785.75/12,551.87
  6. Step 6: Final answer
    x = 7,144.97

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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.