Home / 6,912.10-9,538.64-3,768.31

Finding the Fourth Proportional to 6,912.10, 9,538.64 and 3,768.31

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Solution

The fourth proportional to 6,912.10, 9,538.64 and 3,768.31 is: 5,200.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.10 : 9,538.64 = 3,768.31 : x
  2. Step 2: Convert to fraction form
    6,912.10/9,538.64 = 3,768.31/x
  3. Step 3: Cross multiply
    6,912.10x = 9,538.64 × 3,768.31
  4. Step 4: Simplify right side
    6,912.10x = 35,944,504.81
  5. Step 5: Solve for x
    x = 35,944,504.81/6,912.10
  6. Step 6: Final answer
    x = 5,200.23

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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.