Home / 7,815.36-11,716.62-3,653.28

Finding the Fourth Proportional to 7,815.36, 11,716.62 and 3,653.28

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Solution

The fourth proportional to 7,815.36, 11,716.62 and 3,653.28 is: 5,476.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815.36 : 11,716.62 = 3,653.28 : x
  2. Step 2: Convert to fraction form
    7,815.36/11,716.62 = 3,653.28/x
  3. Step 3: Cross multiply
    7,815.36x = 11,716.62 × 3,653.28
  4. Step 4: Simplify right side
    7,815.36x = 42,804,093.51
  5. Step 5: Solve for x
    x = 42,804,093.51/7,815.36
  6. Step 6: Final answer
    x = 5,476.92

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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.