Home / 7,828.36-11,736.06-3,937.12

Finding the Fourth Proportional to 7,828.36, 11,736.06 and 3,937.12

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Solution

The fourth proportional to 7,828.36, 11,736.06 and 3,937.12 is: 5,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,828.36 : 11,736.06 = 3,937.12 : x
  2. Step 2: Convert to fraction form
    7,828.36/11,736.06 = 3,937.12/x
  3. Step 3: Cross multiply
    7,828.36x = 11,736.06 × 3,937.12
  4. Step 4: Simplify right side
    7,828.36x = 46,206,276.55
  5. Step 5: Solve for x
    x = 46,206,276.55/7,828.36
  6. Step 6: Final answer
    x = 5,902.42

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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.