Home / 7,945.67-11,918.51-2,751.55

Finding the Fourth Proportional to 7,945.67, 11,918.51 and 2,751.55

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Solution

The fourth proportional to 7,945.67, 11,918.51 and 2,751.55 is: 4,127.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.67 : 11,918.51 = 2,751.55 : x
  2. Step 2: Convert to fraction form
    7,945.67/11,918.51 = 2,751.55/x
  3. Step 3: Cross multiply
    7,945.67x = 11,918.51 × 2,751.55
  4. Step 4: Simplify right side
    7,945.67x = 32,794,376.19
  5. Step 5: Solve for x
    x = 32,794,376.19/7,945.67
  6. Step 6: Final answer
    x = 4,127.33

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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.