Home / 7,828.56-11,745.63-3,445.47

Finding the Fourth Proportional to 7,828.56, 11,745.63 and 3,445.47

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Solution

The fourth proportional to 7,828.56, 11,745.63 and 3,445.47 is: 5,169.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.56 : 11,745.63 = 3,445.47 : x
  2. Step 2: Convert to fraction form
    7,828.56/11,745.63 = 3,445.47/x
  3. Step 3: Cross multiply
    7,828.56x = 11,745.63 × 3,445.47
  4. Step 4: Simplify right side
    7,828.56x = 40,469,215.80
  5. Step 5: Solve for x
    x = 40,469,215.80/7,828.56
  6. Step 6: Final answer
    x = 5,169.43

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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.