Home / 8,551.44-12,829.77-5,178.06

Finding the Fourth Proportional to 8,551.44, 12,829.77 and 5,178.06

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Solution

The fourth proportional to 8,551.44, 12,829.77 and 5,178.06 is: 7,768.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,551.44 : 12,829.77 = 5,178.06 : x
  2. Step 2: Convert to fraction form
    8,551.44/12,829.77 = 5,178.06/x
  3. Step 3: Cross multiply
    8,551.44x = 12,829.77 × 5,178.06
  4. Step 4: Simplify right side
    8,551.44x = 66,433,318.85
  5. Step 5: Solve for x
    x = 66,433,318.85/8,551.44
  6. Step 6: Final answer
    x = 7,768.67

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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.