Home / 7,816.33-11,724.37-1,972.90

Finding the Fourth Proportional to 7,816.33, 11,724.37 and 1,972.90

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Solution

The fourth proportional to 7,816.33, 11,724.37 and 1,972.90 is: 2,959.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,816.33 : 11,724.37 = 1,972.90 : x
  2. Step 2: Convert to fraction form
    7,816.33/11,724.37 = 1,972.90/x
  3. Step 3: Cross multiply
    7,816.33x = 11,724.37 × 1,972.90
  4. Step 4: Simplify right side
    7,816.33x = 23,131,009.57
  5. Step 5: Solve for x
    x = 23,131,009.57/7,816.33
  6. Step 6: Final answer
    x = 2,959.32

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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.