Home / 8,949.22-12,350-4,915.78

Finding the Fourth Proportional to 8,949.22, 12,350 and 4,915.78

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Solution

The fourth proportional to 8,949.22, 12,350 and 4,915.78 is: 6,783.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.22 : 12,350 = 4,915.78 : x
  2. Step 2: Convert to fraction form
    8,949.22/12,350 = 4,915.78/x
  3. Step 3: Cross multiply
    8,949.22x = 12,350 × 4,915.78
  4. Step 4: Simplify right side
    8,949.22x = 60,709,883
  5. Step 5: Solve for x
    x = 60,709,883/8,949.22
  6. Step 6: Final answer
    x = 6,783.82

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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.