Home / 11,255.06-16,880.70-3,859.76

Finding the Fourth Proportional to 11,255.06, 16,880.70 and 3,859.76

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Solution

The fourth proportional to 11,255.06, 16,880.70 and 3,859.76 is: 5,788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.06 : 16,880.70 = 3,859.76 : x
  2. Step 2: Convert to fraction form
    11,255.06/16,880.70 = 3,859.76/x
  3. Step 3: Cross multiply
    11,255.06x = 16,880.70 × 3,859.76
  4. Step 4: Simplify right side
    11,255.06x = 65,155,450.63
  5. Step 5: Solve for x
    x = 65,155,450.63/11,255.06
  6. Step 6: Final answer
    x = 5,788.99

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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.