Home / 7,619.76-11,431.44-6,065.64

Finding the Fourth Proportional to 7,619.76, 11,431.44 and 6,065.64

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Solution

The fourth proportional to 7,619.76, 11,431.44 and 6,065.64 is: 9,099.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.76 : 11,431.44 = 6,065.64 : x
  2. Step 2: Convert to fraction form
    7,619.76/11,431.44 = 6,065.64/x
  3. Step 3: Cross multiply
    7,619.76x = 11,431.44 × 6,065.64
  4. Step 4: Simplify right side
    7,619.76x = 69,338,999.72
  5. Step 5: Solve for x
    x = 69,338,999.72/7,619.76
  6. Step 6: Final answer
    x = 9,099.89

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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.