Home / 13,362.80-20,033.52-6,339.28

Finding the Fourth Proportional to 13,362.80, 20,033.52 and 6,339.28

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Solution

The fourth proportional to 13,362.80, 20,033.52 and 6,339.28 is: 9,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.80 : 20,033.52 = 6,339.28 : x
  2. Step 2: Convert to fraction form
    13,362.80/20,033.52 = 6,339.28/x
  3. Step 3: Cross multiply
    13,362.80x = 20,033.52 × 6,339.28
  4. Step 4: Simplify right side
    13,362.80x = 126,998,092.67
  5. Step 5: Solve for x
    x = 126,998,092.67/13,362.80
  6. Step 6: Final answer
    x = 9,503.85

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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.