Home / 8,619.19-12,922.19-3,935.94

Finding the Fourth Proportional to 8,619.19, 12,922.19 and 3,935.94

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Solution

The fourth proportional to 8,619.19, 12,922.19 and 3,935.94 is: 5,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,619.19 : 12,922.19 = 3,935.94 : x
  2. Step 2: Convert to fraction form
    8,619.19/12,922.19 = 3,935.94/x
  3. Step 3: Cross multiply
    8,619.19x = 12,922.19 × 3,935.94
  4. Step 4: Simplify right side
    8,619.19x = 50,860,974.35
  5. Step 5: Solve for x
    x = 50,860,974.35/8,619.19
  6. Step 6: Final answer
    x = 5,900.90

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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.