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Finding the Fourth Proportional to 16,672.80, 25,012.40 and 8,464.80

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Solution

The fourth proportional to 16,672.80, 25,012.40 and 8,464.80 is: 12,698.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,672.80 : 25,012.40 = 8,464.80 : x
  2. Step 2: Convert to fraction form
    16,672.80/25,012.40 = 8,464.80/x
  3. Step 3: Cross multiply
    16,672.80x = 25,012.40 × 8,464.80
  4. Step 4: Simplify right side
    16,672.80x = 211,724,963.52
  5. Step 5: Solve for x
    x = 211,724,963.52/16,672.80
  6. Step 6: Final answer
    x = 12,698.82

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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.