Home / 6,515.06-9,749.82-5,331.38

Finding the Fourth Proportional to 6,515.06, 9,749.82 and 5,331.38

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Solution

The fourth proportional to 6,515.06, 9,749.82 and 5,331.38 is: 7,978.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,515.06 : 9,749.82 = 5,331.38 : x
  2. Step 2: Convert to fraction form
    6,515.06/9,749.82 = 5,331.38/x
  3. Step 3: Cross multiply
    6,515.06x = 9,749.82 × 5,331.38
  4. Step 4: Simplify right side
    6,515.06x = 51,979,995.35
  5. Step 5: Solve for x
    x = 51,979,995.35/6,515.06
  6. Step 6: Final answer
    x = 7,978.44

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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.