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Finding the Fourth Proportional to 7,776.17, 11,671.77 and 7,354.72

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Solution

The fourth proportional to 7,776.17, 11,671.77 and 7,354.72 is: 11,039.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776.17 : 11,671.77 = 7,354.72 : x
  2. Step 2: Convert to fraction form
    7,776.17/11,671.77 = 7,354.72/x
  3. Step 3: Cross multiply
    7,776.17x = 11,671.77 × 7,354.72
  4. Step 4: Simplify right side
    7,776.17x = 85,842,556.09
  5. Step 5: Solve for x
    x = 85,842,556.09/7,776.17
  6. Step 6: Final answer
    x = 11,039.18

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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.