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Finding the Fourth Proportional to 16,853.70, 25,280.55 and 5,166.90

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Solution

The fourth proportional to 16,853.70, 25,280.55 and 5,166.90 is: 7,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,853.70 : 25,280.55 = 5,166.90 : x
  2. Step 2: Convert to fraction form
    16,853.70/25,280.55 = 5,166.90/x
  3. Step 3: Cross multiply
    16,853.70x = 25,280.55 × 5,166.90
  4. Step 4: Simplify right side
    16,853.70x = 130,622,073.80
  5. Step 5: Solve for x
    x = 130,622,073.80/16,853.70
  6. Step 6: Final answer
    x = 7,750.35

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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.