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Finding the Fourth Proportional to 19,697.81, 27,183.06 and 10,745.28

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Solution

The fourth proportional to 19,697.81, 27,183.06 and 10,745.28 is: 14,828.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,697.81 : 27,183.06 = 10,745.28 : x
  2. Step 2: Convert to fraction form
    19,697.81/27,183.06 = 10,745.28/x
  3. Step 3: Cross multiply
    19,697.81x = 27,183.06 × 10,745.28
  4. Step 4: Simplify right side
    19,697.81x = 292,089,590.96
  5. Step 5: Solve for x
    x = 292,089,590.96/19,697.81
  6. Step 6: Final answer
    x = 14,828.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.