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Finding the Fourth Proportional to 8,435.34, 11,629.94 and 6,917.33

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Solution

The fourth proportional to 8,435.34, 11,629.94 and 6,917.33 is: 9,537.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.34 : 11,629.94 = 6,917.33 : x
  2. Step 2: Convert to fraction form
    8,435.34/11,629.94 = 6,917.33/x
  3. Step 3: Cross multiply
    8,435.34x = 11,629.94 × 6,917.33
  4. Step 4: Simplify right side
    8,435.34x = 80,448,040.12
  5. Step 5: Solve for x
    x = 80,448,040.12/8,435.34
  6. Step 6: Final answer
    x = 9,537.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.