Home / 13,976.76-20,968.26-4,619.70

Finding the Fourth Proportional to 13,976.76, 20,968.26 and 4,619.70

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Solution

The fourth proportional to 13,976.76, 20,968.26 and 4,619.70 is: 6,930.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.76 : 20,968.26 = 4,619.70 : x
  2. Step 2: Convert to fraction form
    13,976.76/20,968.26 = 4,619.70/x
  3. Step 3: Cross multiply
    13,976.76x = 20,968.26 × 4,619.70
  4. Step 4: Simplify right side
    13,976.76x = 96,867,070.72
  5. Step 5: Solve for x
    x = 96,867,070.72/13,976.76
  6. Step 6: Final answer
    x = 6,930.58

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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.