Home / 6,825.27-9,418.64-4,172.79

Finding the Fourth Proportional to 6,825.27, 9,418.64 and 4,172.79

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Solution

The fourth proportional to 6,825.27, 9,418.64 and 4,172.79 is: 5,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,825.27 : 9,418.64 = 4,172.79 : x
  2. Step 2: Convert to fraction form
    6,825.27/9,418.64 = 4,172.79/x
  3. Step 3: Cross multiply
    6,825.27x = 9,418.64 × 4,172.79
  4. Step 4: Simplify right side
    6,825.27x = 39,301,985.94
  5. Step 5: Solve for x
    x = 39,301,985.94/6,825.27
  6. Step 6: Final answer
    x = 5,758.30

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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.