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Finding the Fourth Proportional to 9,605.37, 13,201.75 and 8,479.47

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Solution

The fourth proportional to 9,605.37, 13,201.75 and 8,479.47 is: 11,654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,605.37 : 13,201.75 = 8,479.47 : x
  2. Step 2: Convert to fraction form
    9,605.37/13,201.75 = 8,479.47/x
  3. Step 3: Cross multiply
    9,605.37x = 13,201.75 × 8,479.47
  4. Step 4: Simplify right side
    9,605.37x = 111,943,843.07
  5. Step 5: Solve for x
    x = 111,943,843.07/9,605.37
  6. Step 6: Final answer
    x = 11,654.30

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.