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Finding the Fourth Proportional to 8,508, 11,741.10 and 4,782

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Solution

The fourth proportional to 8,508, 11,741.10 and 4,782 is: 6,599.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508 : 11,741.10 = 4,782 : x
  2. Step 2: Convert to fraction form
    8,508/11,741.10 = 4,782/x
  3. Step 3: Cross multiply
    8,508x = 11,741.10 × 4,782
  4. Step 4: Simplify right side
    8,508x = 56,145,940.20
  5. Step 5: Solve for x
    x = 56,145,940.20/8,508
  6. Step 6: Final answer
    x = 6,599.19

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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.