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Finding the Fourth Proportional to 9,334.99, 13,987.90 and 5,388.67

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Solution

The fourth proportional to 9,334.99, 13,987.90 and 5,388.67 is: 8,074.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.99 : 13,987.90 = 5,388.67 : x
  2. Step 2: Convert to fraction form
    9,334.99/13,987.90 = 5,388.67/x
  3. Step 3: Cross multiply
    9,334.99x = 13,987.90 × 5,388.67
  4. Step 4: Simplify right side
    9,334.99x = 75,376,201.31
  5. Step 5: Solve for x
    x = 75,376,201.31/9,334.99
  6. Step 6: Final answer
    x = 8,074.59

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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.