Home / 13,181.60-19,766.63-3,945.44

Finding the Fourth Proportional to 13,181.60, 19,766.63 and 3,945.44

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Solution

The fourth proportional to 13,181.60, 19,766.63 and 3,945.44 is: 5,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.60 : 19,766.63 = 3,945.44 : x
  2. Step 2: Convert to fraction form
    13,181.60/19,766.63 = 3,945.44/x
  3. Step 3: Cross multiply
    13,181.60x = 19,766.63 × 3,945.44
  4. Step 4: Simplify right side
    13,181.60x = 77,988,052.67
  5. Step 5: Solve for x
    x = 77,988,052.67/13,181.60
  6. Step 6: Final answer
    x = 5,916.43

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Why These Related Problems?

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