Home / 7,680.88-11,511.60-4,906.48

Finding the Fourth Proportional to 7,680.88, 11,511.60 and 4,906.48

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Solution

The fourth proportional to 7,680.88, 11,511.60 and 4,906.48 is: 7,353.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.88 : 11,511.60 = 4,906.48 : x
  2. Step 2: Convert to fraction form
    7,680.88/11,511.60 = 4,906.48/x
  3. Step 3: Cross multiply
    7,680.88x = 11,511.60 × 4,906.48
  4. Step 4: Simplify right side
    7,680.88x = 56,481,435.17
  5. Step 5: Solve for x
    x = 56,481,435.17/7,680.88
  6. Step 6: Final answer
    x = 7,353.51

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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.