Home / 7,918.44-11,872.86-5,450.55

Finding the Fourth Proportional to 7,918.44, 11,872.86 and 5,450.55

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Solution

The fourth proportional to 7,918.44, 11,872.86 and 5,450.55 is: 8,172.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.44 : 11,872.86 = 5,450.55 : x
  2. Step 2: Convert to fraction form
    7,918.44/11,872.86 = 5,450.55/x
  3. Step 3: Cross multiply
    7,918.44x = 11,872.86 × 5,450.55
  4. Step 4: Simplify right side
    7,918.44x = 64,713,617.07
  5. Step 5: Solve for x
    x = 64,713,617.07/7,918.44
  6. Step 6: Final answer
    x = 8,172.52

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1.5x scale

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.