Home / 7,795.40-11,699.32-4,099.80

Finding the Fourth Proportional to 7,795.40, 11,699.32 and 4,099.80

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Solution

The fourth proportional to 7,795.40, 11,699.32 and 4,099.80 is: 6,152.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,795.40 : 11,699.32 = 4,099.80 : x
  2. Step 2: Convert to fraction form
    7,795.40/11,699.32 = 4,099.80/x
  3. Step 3: Cross multiply
    7,795.40x = 11,699.32 × 4,099.80
  4. Step 4: Simplify right side
    7,795.40x = 47,964,872.14
  5. Step 5: Solve for x
    x = 47,964,872.14/7,795.40
  6. Step 6: Final answer
    x = 6,152.97

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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.