Home / 8,768.21-13,150.88-3,220.17

Finding the Fourth Proportional to 8,768.21, 13,150.88 and 3,220.17

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Solution

The fourth proportional to 8,768.21, 13,150.88 and 3,220.17 is: 4,829.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.21 : 13,150.88 = 3,220.17 : x
  2. Step 2: Convert to fraction form
    8,768.21/13,150.88 = 3,220.17/x
  3. Step 3: Cross multiply
    8,768.21x = 13,150.88 × 3,220.17
  4. Step 4: Simplify right side
    8,768.21x = 42,348,053.15
  5. Step 5: Solve for x
    x = 42,348,053.15/8,768.21
  6. Step 6: Final answer
    x = 4,829.73

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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.