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Finding the Fourth Proportional to 8,328.76, 12,486.98 and 3,941.08

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Solution

The fourth proportional to 8,328.76, 12,486.98 and 3,941.08 is: 5,908.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.76 : 12,486.98 = 3,941.08 : x
  2. Step 2: Convert to fraction form
    8,328.76/12,486.98 = 3,941.08/x
  3. Step 3: Cross multiply
    8,328.76x = 12,486.98 × 3,941.08
  4. Step 4: Simplify right side
    8,328.76x = 49,212,187.14
  5. Step 5: Solve for x
    x = 49,212,187.14/8,328.76
  6. Step 6: Final answer
    x = 5,908.71

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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.