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Finding the Fourth Proportional to 8,457.99, 12,687.83 and 2,910.60

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Solution

The fourth proportional to 8,457.99, 12,687.83 and 2,910.60 is: 4,366.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.99 : 12,687.83 = 2,910.60 : x
  2. Step 2: Convert to fraction form
    8,457.99/12,687.83 = 2,910.60/x
  3. Step 3: Cross multiply
    8,457.99x = 12,687.83 × 2,910.60
  4. Step 4: Simplify right side
    8,457.99x = 36,929,202.55
  5. Step 5: Solve for x
    x = 36,929,202.55/8,457.99
  6. Step 6: Final answer
    x = 4,366.19

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.