Home / 8,320.75-11,481.33-4,783.30

Finding the Fourth Proportional to 8,320.75, 11,481.33 and 4,783.30

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Solution

The fourth proportional to 8,320.75, 11,481.33 and 4,783.30 is: 6,600.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.75 : 11,481.33 = 4,783.30 : x
  2. Step 2: Convert to fraction form
    8,320.75/11,481.33 = 4,783.30/x
  3. Step 3: Cross multiply
    8,320.75x = 11,481.33 × 4,783.30
  4. Step 4: Simplify right side
    8,320.75x = 54,918,645.79
  5. Step 5: Solve for x
    x = 54,918,645.79/8,320.75
  6. Step 6: Final answer
    x = 6,600.20

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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.