Home / 8,259.12-12,392.31-3,338.37

Finding the Fourth Proportional to 8,259.12, 12,392.31 and 3,338.37

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Solution

The fourth proportional to 8,259.12, 12,392.31 and 3,338.37 is: 5,009.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.12 : 12,392.31 = 3,338.37 : x
  2. Step 2: Convert to fraction form
    8,259.12/12,392.31 = 3,338.37/x
  3. Step 3: Cross multiply
    8,259.12x = 12,392.31 × 3,338.37
  4. Step 4: Simplify right side
    8,259.12x = 41,370,115.93
  5. Step 5: Solve for x
    x = 41,370,115.93/8,259.12
  6. Step 6: Final answer
    x = 5,009.02

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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.