Home / 10,489.49-15,736.94-3,915.73

Finding the Fourth Proportional to 10,489.49, 15,736.94 and 3,915.73

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Solution

The fourth proportional to 10,489.49, 15,736.94 and 3,915.73 is: 5,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.49 : 15,736.94 = 3,915.73 : x
  2. Step 2: Convert to fraction form
    10,489.49/15,736.94 = 3,915.73/x
  3. Step 3: Cross multiply
    10,489.49x = 15,736.94 × 3,915.73
  4. Step 4: Simplify right side
    10,489.49x = 61,621,608.07
  5. Step 5: Solve for x
    x = 61,621,608.07/10,489.49
  6. Step 6: Final answer
    x = 5,874.60

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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.