Home / 12,268.74-18,402.66-3,949.32

Finding the Fourth Proportional to 12,268.74, 18,402.66 and 3,949.32

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Solution

The fourth proportional to 12,268.74, 18,402.66 and 3,949.32 is: 5,923.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,268.74 : 18,402.66 = 3,949.32 : x
  2. Step 2: Convert to fraction form
    12,268.74/18,402.66 = 3,949.32/x
  3. Step 3: Cross multiply
    12,268.74x = 18,402.66 × 3,949.32
  4. Step 4: Simplify right side
    12,268.74x = 72,677,993.19
  5. Step 5: Solve for x
    x = 72,677,993.19/12,268.74
  6. Step 6: Final answer
    x = 5,923.84

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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.