Home / 8,274.20-11,414.58-4,915.10

Finding the Fourth Proportional to 8,274.20, 11,414.58 and 4,915.10

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Solution

The fourth proportional to 8,274.20, 11,414.58 and 4,915.10 is: 6,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.20 : 11,414.58 = 4,915.10 : x
  2. Step 2: Convert to fraction form
    8,274.20/11,414.58 = 4,915.10/x
  3. Step 3: Cross multiply
    8,274.20x = 11,414.58 × 4,915.10
  4. Step 4: Simplify right side
    8,274.20x = 56,103,745.09
  5. Step 5: Solve for x
    x = 56,103,745.09/8,274.20
  6. Step 6: Final answer
    x = 6,780.57

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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.