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Finding the Fourth Proportional to 8,682.87, 11,982.31 and 4,703.99

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Solution

The fourth proportional to 8,682.87, 11,982.31 and 4,703.99 is: 6,491.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.87 : 11,982.31 = 4,703.99 : x
  2. Step 2: Convert to fraction form
    8,682.87/11,982.31 = 4,703.99/x
  3. Step 3: Cross multiply
    8,682.87x = 11,982.31 × 4,703.99
  4. Step 4: Simplify right side
    8,682.87x = 56,364,666.42
  5. Step 5: Solve for x
    x = 56,364,666.42/8,682.87
  6. Step 6: Final answer
    x = 6,491.48

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