Home / 7,858.36-11,787.61-2,015.02

Finding the Fourth Proportional to 7,858.36, 11,787.61 and 2,015.02

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Solution

The fourth proportional to 7,858.36, 11,787.61 and 2,015.02 is: 3,022.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,858.36 : 11,787.61 = 2,015.02 : x
  2. Step 2: Convert to fraction form
    7,858.36/11,787.61 = 2,015.02/x
  3. Step 3: Cross multiply
    7,858.36x = 11,787.61 × 2,015.02
  4. Step 4: Simplify right side
    7,858.36x = 23,752,235.40
  5. Step 5: Solve for x
    x = 23,752,235.40/7,858.36
  6. Step 6: Final answer
    x = 3,022.54

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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.