Home / 6,999.21-10,489.37-3,828.47

Finding the Fourth Proportional to 6,999.21, 10,489.37 and 3,828.47

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Solution

The fourth proportional to 6,999.21, 10,489.37 and 3,828.47 is: 5,737.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.21 : 10,489.37 = 3,828.47 : x
  2. Step 2: Convert to fraction form
    6,999.21/10,489.37 = 3,828.47/x
  3. Step 3: Cross multiply
    6,999.21x = 10,489.37 × 3,828.47
  4. Step 4: Simplify right side
    6,999.21x = 40,158,166.77
  5. Step 5: Solve for x
    x = 40,158,166.77/6,999.21
  6. Step 6: Final answer
    x = 5,737.53

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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.