Home / 11,274.24-16,910.56-3,878.40

Finding the Fourth Proportional to 11,274.24, 16,910.56 and 3,878.40

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Solution

The fourth proportional to 11,274.24, 16,910.56 and 3,878.40 is: 5,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.24 : 16,910.56 = 3,878.40 : x
  2. Step 2: Convert to fraction form
    11,274.24/16,910.56 = 3,878.40/x
  3. Step 3: Cross multiply
    11,274.24x = 16,910.56 × 3,878.40
  4. Step 4: Simplify right side
    11,274.24x = 65,585,915.90
  5. Step 5: Solve for x
    x = 65,585,915.90/11,274.24
  6. Step 6: Final answer
    x = 5,817.32

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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.