Home / 7,273.83-10,915.53-3,989.25

Finding the Fourth Proportional to 7,273.83, 10,915.53 and 3,989.25

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Solution

The fourth proportional to 7,273.83, 10,915.53 and 3,989.25 is: 5,986.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,273.83 : 10,915.53 = 3,989.25 : x
  2. Step 2: Convert to fraction form
    7,273.83/10,915.53 = 3,989.25/x
  3. Step 3: Cross multiply
    7,273.83x = 10,915.53 × 3,989.25
  4. Step 4: Simplify right side
    7,273.83x = 43,544,763.09
  5. Step 5: Solve for x
    x = 43,544,763.09/7,273.83
  6. Step 6: Final answer
    x = 5,986.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.