Home / 7,724.28-11,628.62-5,274.60

Finding the Fourth Proportional to 7,724.28, 11,628.62 and 5,274.60

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Solution

The fourth proportional to 7,724.28, 11,628.62 and 5,274.60 is: 7,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.28 : 11,628.62 = 5,274.60 : x
  2. Step 2: Convert to fraction form
    7,724.28/11,628.62 = 5,274.60/x
  3. Step 3: Cross multiply
    7,724.28x = 11,628.62 × 5,274.60
  4. Step 4: Simplify right side
    7,724.28x = 61,336,319.05
  5. Step 5: Solve for x
    x = 61,336,319.05/7,724.28
  6. Step 6: Final answer
    x = 7,940.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.