Home / 6,917.69-10,375.02-1,986.23

Finding the Fourth Proportional to 6,917.69, 10,375.02 and 1,986.23

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Solution

The fourth proportional to 6,917.69, 10,375.02 and 1,986.23 is: 2,978.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,917.69 : 10,375.02 = 1,986.23 : x
  2. Step 2: Convert to fraction form
    6,917.69/10,375.02 = 1,986.23/x
  3. Step 3: Cross multiply
    6,917.69x = 10,375.02 × 1,986.23
  4. Step 4: Simplify right side
    6,917.69x = 20,607,175.97
  5. Step 5: Solve for x
    x = 20,607,175.97/6,917.69
  6. Step 6: Final answer
    x = 2,978.91

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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.