Home / 8,728.88-13,085.37-3,180.96

Finding the Fourth Proportional to 8,728.88, 13,085.37 and 3,180.96

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Solution

The fourth proportional to 8,728.88, 13,085.37 and 3,180.96 is: 4,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,728.88 : 13,085.37 = 3,180.96 : x
  2. Step 2: Convert to fraction form
    8,728.88/13,085.37 = 3,180.96/x
  3. Step 3: Cross multiply
    8,728.88x = 13,085.37 × 3,180.96
  4. Step 4: Simplify right side
    8,728.88x = 41,624,038.56
  5. Step 5: Solve for x
    x = 41,624,038.56/8,728.88
  6. Step 6: Final answer
    x = 4,768.54

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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.