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Finding the Fourth Proportional to 11,090.55, 16,635.83 and 6,470.31

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Solution

The fourth proportional to 11,090.55, 16,635.83 and 6,470.31 is: 9,705.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,090.55 : 16,635.83 = 6,470.31 : x
  2. Step 2: Convert to fraction form
    11,090.55/16,635.83 = 6,470.31/x
  3. Step 3: Cross multiply
    11,090.55x = 16,635.83 × 6,470.31
  4. Step 4: Simplify right side
    11,090.55x = 107,638,977.21
  5. Step 5: Solve for x
    x = 107,638,977.21/11,090.55
  6. Step 6: Final answer
    x = 9,705.47

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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.