Home / 8,133.28-12,199.48-2,868.55

Finding the Fourth Proportional to 8,133.28, 12,199.48 and 2,868.55

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Solution

The fourth proportional to 8,133.28, 12,199.48 and 2,868.55 is: 4,302.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.28 : 12,199.48 = 2,868.55 : x
  2. Step 2: Convert to fraction form
    8,133.28/12,199.48 = 2,868.55/x
  3. Step 3: Cross multiply
    8,133.28x = 12,199.48 × 2,868.55
  4. Step 4: Simplify right side
    8,133.28x = 34,994,780.68
  5. Step 5: Solve for x
    x = 34,994,780.68/8,133.28
  6. Step 6: Final answer
    x = 4,302.67

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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.