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Finding the Fourth Proportional to 7,666.28, 11,495.10 and 2,666.36

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Solution

The fourth proportional to 7,666.28, 11,495.10 and 2,666.36 is: 3,998.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,666.28 : 11,495.10 = 2,666.36 : x
  2. Step 2: Convert to fraction form
    7,666.28/11,495.10 = 2,666.36/x
  3. Step 3: Cross multiply
    7,666.28x = 11,495.10 × 2,666.36
  4. Step 4: Simplify right side
    7,666.28x = 30,650,074.84
  5. Step 5: Solve for x
    x = 30,650,074.84/7,666.28
  6. Step 6: Final answer
    x = 3,998.04

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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.