Home / 7,716.87-11,570.45-5,081.54

Finding the Fourth Proportional to 7,716.87, 11,570.45 and 5,081.54

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Solution

The fourth proportional to 7,716.87, 11,570.45 and 5,081.54 is: 7,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,716.87 : 11,570.45 = 5,081.54 : x
  2. Step 2: Convert to fraction form
    7,716.87/11,570.45 = 5,081.54/x
  3. Step 3: Cross multiply
    7,716.87x = 11,570.45 × 5,081.54
  4. Step 4: Simplify right side
    7,716.87x = 58,795,621.23
  5. Step 5: Solve for x
    x = 58,795,621.23/7,716.87
  6. Step 6: Final answer
    x = 7,619.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.