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Finding the Fourth Proportional to 8,917.35, 13,368.72 and 3,367.54

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Solution

The fourth proportional to 8,917.35, 13,368.72 and 3,367.54 is: 5,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.35 : 13,368.72 = 3,367.54 : x
  2. Step 2: Convert to fraction form
    8,917.35/13,368.72 = 3,367.54/x
  3. Step 3: Cross multiply
    8,917.35x = 13,368.72 × 3,367.54
  4. Step 4: Simplify right side
    8,917.35x = 45,019,699.35
  5. Step 5: Solve for x
    x = 45,019,699.35/8,917.35
  6. Step 6: Final answer
    x = 5,048.55

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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.