Home / 8,205.48-12,308.38-2,940.84

Finding the Fourth Proportional to 8,205.48, 12,308.38 and 2,940.84

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Solution

The fourth proportional to 8,205.48, 12,308.38 and 2,940.84 is: 4,411.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.48 : 12,308.38 = 2,940.84 : x
  2. Step 2: Convert to fraction form
    8,205.48/12,308.38 = 2,940.84/x
  3. Step 3: Cross multiply
    8,205.48x = 12,308.38 × 2,940.84
  4. Step 4: Simplify right side
    8,205.48x = 36,196,976.24
  5. Step 5: Solve for x
    x = 36,196,976.24/8,205.48
  6. Step 6: Final answer
    x = 4,411.32

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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.