Home / 7,896.58-11,815.64-6,331.80

Finding the Fourth Proportional to 7,896.58, 11,815.64 and 6,331.80

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Solution

The fourth proportional to 7,896.58, 11,815.64 and 6,331.80 is: 9,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,896.58 : 11,815.64 = 6,331.80 : x
  2. Step 2: Convert to fraction form
    7,896.58/11,815.64 = 6,331.80/x
  3. Step 3: Cross multiply
    7,896.58x = 11,815.64 × 6,331.80
  4. Step 4: Simplify right side
    7,896.58x = 74,814,269.35
  5. Step 5: Solve for x
    x = 74,814,269.35/7,896.58
  6. Step 6: Final answer
    x = 9,474.26

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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.