Home / 7,943.25-11,913.87-2,100.32

Finding the Fourth Proportional to 7,943.25, 11,913.87 and 2,100.32

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Solution

The fourth proportional to 7,943.25, 11,913.87 and 2,100.32 is: 3,150.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.25 : 11,913.87 = 2,100.32 : x
  2. Step 2: Convert to fraction form
    7,943.25/11,913.87 = 2,100.32/x
  3. Step 3: Cross multiply
    7,943.25x = 11,913.87 × 2,100.32
  4. Step 4: Simplify right side
    7,943.25x = 25,022,939.44
  5. Step 5: Solve for x
    x = 25,022,939.44/7,943.25
  6. Step 6: Final answer
    x = 3,150.21

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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.