Home / 7,871.38-11,804.55-3,192.56

Finding the Fourth Proportional to 7,871.38, 11,804.55 and 3,192.56

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Solution

The fourth proportional to 7,871.38, 11,804.55 and 3,192.56 is: 4,787.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,871.38 : 11,804.55 = 3,192.56 : x
  2. Step 2: Convert to fraction form
    7,871.38/11,804.55 = 3,192.56/x
  3. Step 3: Cross multiply
    7,871.38x = 11,804.55 × 3,192.56
  4. Step 4: Simplify right side
    7,871.38x = 37,686,734.15
  5. Step 5: Solve for x
    x = 37,686,734.15/7,871.38
  6. Step 6: Final answer
    x = 4,787.82

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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.