Home / 7,718.97-11,584.30-5,085.57

Finding the Fourth Proportional to 7,718.97, 11,584.30 and 5,085.57

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Solution

The fourth proportional to 7,718.97, 11,584.30 and 5,085.57 is: 7,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.97 : 11,584.30 = 5,085.57 : x
  2. Step 2: Convert to fraction form
    7,718.97/11,584.30 = 5,085.57/x
  3. Step 3: Cross multiply
    7,718.97x = 11,584.30 × 5,085.57
  4. Step 4: Simplify right side
    7,718.97x = 58,912,768.55
  5. Step 5: Solve for x
    x = 58,912,768.55/7,718.97
  6. Step 6: Final answer
    x = 7,632.21

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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.