Home / 13,787.25-19,029.78-7,822.41

Finding the Fourth Proportional to 13,787.25, 19,029.78 and 7,822.41

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Solution

The fourth proportional to 13,787.25, 19,029.78 and 7,822.41 is: 10,796.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,787.25 : 19,029.78 = 7,822.41 : x
  2. Step 2: Convert to fraction form
    13,787.25/19,029.78 = 7,822.41/x
  3. Step 3: Cross multiply
    13,787.25x = 19,029.78 × 7,822.41
  4. Step 4: Simplify right side
    13,787.25x = 148,858,741.37
  5. Step 5: Solve for x
    x = 148,858,741.37/13,787.25
  6. Step 6: Final answer
    x = 10,796.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.