Home / 12,511.20-18,766.78-5,933.79

Finding the Fourth Proportional to 12,511.20, 18,766.78 and 5,933.79

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Solution

The fourth proportional to 12,511.20, 18,766.78 and 5,933.79 is: 8,900.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511.20 : 18,766.78 = 5,933.79 : x
  2. Step 2: Convert to fraction form
    12,511.20/18,766.78 = 5,933.79/x
  3. Step 3: Cross multiply
    12,511.20x = 18,766.78 × 5,933.79
  4. Step 4: Simplify right side
    12,511.20x = 111,358,131.50
  5. Step 5: Solve for x
    x = 111,358,131.50/12,511.20
  6. Step 6: Final answer
    x = 8,900.68

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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.