Home / 11,777.87-17,669.39-3,880.07

Finding the Fourth Proportional to 11,777.87, 17,669.39 and 3,880.07

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Solution

The fourth proportional to 11,777.87, 17,669.39 and 3,880.07 is: 5,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,777.87 : 17,669.39 = 3,880.07 : x
  2. Step 2: Convert to fraction form
    11,777.87/17,669.39 = 3,880.07/x
  3. Step 3: Cross multiply
    11,777.87x = 17,669.39 × 3,880.07
  4. Step 4: Simplify right side
    11,777.87x = 68,558,450.40
  5. Step 5: Solve for x
    x = 68,558,450.40/11,777.87
  6. Step 6: Final answer
    x = 5,820.95

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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.