Home / 6,896.72-9,520.56-5,218.40

Finding the Fourth Proportional to 6,896.72, 9,520.56 and 5,218.40

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Solution

The fourth proportional to 6,896.72, 9,520.56 and 5,218.40 is: 7,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,896.72 : 9,520.56 = 5,218.40 : x
  2. Step 2: Convert to fraction form
    6,896.72/9,520.56 = 5,218.40/x
  3. Step 3: Cross multiply
    6,896.72x = 9,520.56 × 5,218.40
  4. Step 4: Simplify right side
    6,896.72x = 49,682,090.30
  5. Step 5: Solve for x
    x = 49,682,090.30/6,896.72
  6. Step 6: Final answer
    x = 7,203.73

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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.