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Finding the Fourth Proportional to 8,778.82, 13,154.39 and 3,224.50

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Solution

The fourth proportional to 8,778.82, 13,154.39 and 3,224.50 is: 4,831.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778.82 : 13,154.39 = 3,224.50 : x
  2. Step 2: Convert to fraction form
    8,778.82/13,154.39 = 3,224.50/x
  3. Step 3: Cross multiply
    8,778.82x = 13,154.39 × 3,224.50
  4. Step 4: Simplify right side
    8,778.82x = 42,416,330.56
  5. Step 5: Solve for x
    x = 42,416,330.56/8,778.82
  6. Step 6: Final answer
    x = 4,831.67

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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.