Home / 7,121.72-9,825.36-4,468.16

Finding the Fourth Proportional to 7,121.72, 9,825.36 and 4,468.16

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Solution

The fourth proportional to 7,121.72, 9,825.36 and 4,468.16 is: 6,164.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121.72 : 9,825.36 = 4,468.16 : x
  2. Step 2: Convert to fraction form
    7,121.72/9,825.36 = 4,468.16/x
  3. Step 3: Cross multiply
    7,121.72x = 9,825.36 × 4,468.16
  4. Step 4: Simplify right side
    7,121.72x = 43,901,280.54
  5. Step 5: Solve for x
    x = 43,901,280.54/7,121.72
  6. Step 6: Final answer
    x = 6,164.42

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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.