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Finding the Fourth Proportional to 7,751.11, 11,627.49 and 5,135.62

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Solution

The fourth proportional to 7,751.11, 11,627.49 and 5,135.62 is: 7,703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.11 : 11,627.49 = 5,135.62 : x
  2. Step 2: Convert to fraction form
    7,751.11/11,627.49 = 5,135.62/x
  3. Step 3: Cross multiply
    7,751.11x = 11,627.49 × 5,135.62
  4. Step 4: Simplify right side
    7,751.11x = 59,714,370.19
  5. Step 5: Solve for x
    x = 59,714,370.19/7,751.11
  6. Step 6: Final answer
    x = 7,703.98

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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.