Home / 7,788.59-11,682.16-3,107.36

Finding the Fourth Proportional to 7,788.59, 11,682.16 and 3,107.36

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Solution

The fourth proportional to 7,788.59, 11,682.16 and 3,107.36 is: 4,660.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,788.59 : 11,682.16 = 3,107.36 : x
  2. Step 2: Convert to fraction form
    7,788.59/11,682.16 = 3,107.36/x
  3. Step 3: Cross multiply
    7,788.59x = 11,682.16 × 3,107.36
  4. Step 4: Simplify right side
    7,788.59x = 36,300,698.13
  5. Step 5: Solve for x
    x = 36,300,698.13/7,788.59
  6. Step 6: Final answer
    x = 4,660.75

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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.