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Finding the Fourth Proportional to 9,181.37, 12,670.91 and 5,202.51

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Solution

The fourth proportional to 9,181.37, 12,670.91 and 5,202.51 is: 7,179.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.37 : 12,670.91 = 5,202.51 : x
  2. Step 2: Convert to fraction form
    9,181.37/12,670.91 = 5,202.51/x
  3. Step 3: Cross multiply
    9,181.37x = 12,670.91 × 5,202.51
  4. Step 4: Simplify right side
    9,181.37x = 65,920,535.98
  5. Step 5: Solve for x
    x = 65,920,535.98/9,181.37
  6. Step 6: Final answer
    x = 7,179.81

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