Home / 7,813.67-10,771.63-5,571.64

Finding the Fourth Proportional to 7,813.67, 10,771.63 and 5,571.64

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Solution

The fourth proportional to 7,813.67, 10,771.63 and 5,571.64 is: 7,680.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,813.67 : 10,771.63 = 5,571.64 : x
  2. Step 2: Convert to fraction form
    7,813.67/10,771.63 = 5,571.64/x
  3. Step 3: Cross multiply
    7,813.67x = 10,771.63 × 5,571.64
  4. Step 4: Simplify right side
    7,813.67x = 60,015,603.72
  5. Step 5: Solve for x
    x = 60,015,603.72/7,813.67
  6. Step 6: Final answer
    x = 7,680.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.