Home / 6,939.50-9,576.78-3,955.26

Finding the Fourth Proportional to 6,939.50, 9,576.78 and 3,955.26

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Solution

The fourth proportional to 6,939.50, 9,576.78 and 3,955.26 is: 5,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.50 : 9,576.78 = 3,955.26 : x
  2. Step 2: Convert to fraction form
    6,939.50/9,576.78 = 3,955.26/x
  3. Step 3: Cross multiply
    6,939.50x = 9,576.78 × 3,955.26
  4. Step 4: Simplify right side
    6,939.50x = 37,878,654.86
  5. Step 5: Solve for x
    x = 37,878,654.86/6,939.50
  6. Step 6: Final answer
    x = 5,458.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.