Home / 6,939.42-9,576.36-3,955.38

Finding the Fourth Proportional to 6,939.42, 9,576.36 and 3,955.38

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Solution

The fourth proportional to 6,939.42, 9,576.36 and 3,955.38 is: 5,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.42 : 9,576.36 = 3,955.38 : x
  2. Step 2: Convert to fraction form
    6,939.42/9,576.36 = 3,955.38/x
  3. Step 3: Cross multiply
    6,939.42x = 9,576.36 × 3,955.38
  4. Step 4: Simplify right side
    6,939.42x = 37,878,142.82
  5. Step 5: Solve for x
    x = 37,878,142.82/6,939.42
  6. Step 6: Final answer
    x = 5,458.40

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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.