Home / 7,725.68-10,660.48-5,486.75

Finding the Fourth Proportional to 7,725.68, 10,660.48 and 5,486.75

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Solution

The fourth proportional to 7,725.68, 10,660.48 and 5,486.75 is: 7,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.68 : 10,660.48 = 5,486.75 : x
  2. Step 2: Convert to fraction form
    7,725.68/10,660.48 = 5,486.75/x
  3. Step 3: Cross multiply
    7,725.68x = 10,660.48 × 5,486.75
  4. Step 4: Simplify right side
    7,725.68x = 58,491,321.62
  5. Step 5: Solve for x
    x = 58,491,321.62/7,725.68
  6. Step 6: Final answer
    x = 7,571.03

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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.