Home / 9,979.80-14,961.48-3,976.48

Finding the Fourth Proportional to 9,979.80, 14,961.48 and 3,976.48

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Solution

The fourth proportional to 9,979.80, 14,961.48 and 3,976.48 is: 5,961.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.80 : 14,961.48 = 3,976.48 : x
  2. Step 2: Convert to fraction form
    9,979.80/14,961.48 = 3,976.48/x
  3. Step 3: Cross multiply
    9,979.80x = 14,961.48 × 3,976.48
  4. Step 4: Simplify right side
    9,979.80x = 59,494,025.99
  5. Step 5: Solve for x
    x = 59,494,025.99/9,979.80
  6. Step 6: Final answer
    x = 5,961.44

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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.