Home / 8,768.42-13,144.81-3,220.48

Finding the Fourth Proportional to 8,768.42, 13,144.81 and 3,220.48

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Solution

The fourth proportional to 8,768.42, 13,144.81 and 3,220.48 is: 4,827.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.42 : 13,144.81 = 3,220.48 : x
  2. Step 2: Convert to fraction form
    8,768.42/13,144.81 = 3,220.48/x
  3. Step 3: Cross multiply
    8,768.42x = 13,144.81 × 3,220.48
  4. Step 4: Simplify right side
    8,768.42x = 42,332,597.71
  5. Step 5: Solve for x
    x = 42,332,597.71/8,768.42
  6. Step 6: Final answer
    x = 4,827.85

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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.