Home / 7,619.97-11,361.50-6,969.09

Finding the Fourth Proportional to 7,619.97, 11,361.50 and 6,969.09

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Solution

The fourth proportional to 7,619.97, 11,361.50 and 6,969.09 is: 10,391.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.97 : 11,361.50 = 6,969.09 : x
  2. Step 2: Convert to fraction form
    7,619.97/11,361.50 = 6,969.09/x
  3. Step 3: Cross multiply
    7,619.97x = 11,361.50 × 6,969.09
  4. Step 4: Simplify right side
    7,619.97x = 79,179,316.04
  5. Step 5: Solve for x
    x = 79,179,316.04/7,619.97
  6. Step 6: Final answer
    x = 10,391.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.