Home / 8,768.68-13,149.82-3,220.20

Finding the Fourth Proportional to 8,768.68, 13,149.82 and 3,220.20

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Solution

The fourth proportional to 8,768.68, 13,149.82 and 3,220.20 is: 4,829.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.68 : 13,149.82 = 3,220.20 : x
  2. Step 2: Convert to fraction form
    8,768.68/13,149.82 = 3,220.20/x
  3. Step 3: Cross multiply
    8,768.68x = 13,149.82 × 3,220.20
  4. Step 4: Simplify right side
    8,768.68x = 42,345,050.36
  5. Step 5: Solve for x
    x = 42,345,050.36/8,768.68
  6. Step 6: Final answer
    x = 4,829.12

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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.