Home / 6,918.33-10,376.39-1,986.85

Finding the Fourth Proportional to 6,918.33, 10,376.39 and 1,986.85

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Solution

The fourth proportional to 6,918.33, 10,376.39 and 1,986.85 is: 2,979.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,918.33 : 10,376.39 = 1,986.85 : x
  2. Step 2: Convert to fraction form
    6,918.33/10,376.39 = 1,986.85/x
  3. Step 3: Cross multiply
    6,918.33x = 10,376.39 × 1,986.85
  4. Step 4: Simplify right side
    6,918.33x = 20,616,323.78
  5. Step 5: Solve for x
    x = 20,616,323.78/6,918.33
  6. Step 6: Final answer
    x = 2,979.96

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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.