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Finding the Fourth Proportional to 8,188.44, 11,300.12 and 4,651.72

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Solution

The fourth proportional to 8,188.44, 11,300.12 and 4,651.72 is: 6,419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.44 : 11,300.12 = 4,651.72 : x
  2. Step 2: Convert to fraction form
    8,188.44/11,300.12 = 4,651.72/x
  3. Step 3: Cross multiply
    8,188.44x = 11,300.12 × 4,651.72
  4. Step 4: Simplify right side
    8,188.44x = 52,564,994.21
  5. Step 5: Solve for x
    x = 52,564,994.21/8,188.44
  6. Step 6: Final answer
    x = 6,419.41

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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.