Home / 7,914.79-11,867.80-3,238.08

Finding the Fourth Proportional to 7,914.79, 11,867.80 and 3,238.08

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Solution

The fourth proportional to 7,914.79, 11,867.80 and 3,238.08 is: 4,855.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.79 : 11,867.80 = 3,238.08 : x
  2. Step 2: Convert to fraction form
    7,914.79/11,867.80 = 3,238.08/x
  3. Step 3: Cross multiply
    7,914.79x = 11,867.80 × 3,238.08
  4. Step 4: Simplify right side
    7,914.79x = 38,428,906.05
  5. Step 5: Solve for x
    x = 38,428,906.05/7,914.79
  6. Step 6: Final answer
    x = 4,855.33

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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.