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Finding the Fourth Proportional to 16,878.10, 25,317.15 and 8,110.90

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Solution

The fourth proportional to 16,878.10, 25,317.15 and 8,110.90 is: 12,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.10 : 25,317.15 = 8,110.90 : x
  2. Step 2: Convert to fraction form
    16,878.10/25,317.15 = 8,110.90/x
  3. Step 3: Cross multiply
    16,878.10x = 25,317.15 × 8,110.90
  4. Step 4: Simplify right side
    16,878.10x = 205,344,871.94
  5. Step 5: Solve for x
    x = 205,344,871.94/16,878.10
  6. Step 6: Final answer
    x = 12,166.35

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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.