Home / 12,577.74-18,866.60-3,217.78

Finding the Fourth Proportional to 12,577.74, 18,866.60 and 3,217.78

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Solution

The fourth proportional to 12,577.74, 18,866.60 and 3,217.78 is: 4,826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.74 : 18,866.60 = 3,217.78 : x
  2. Step 2: Convert to fraction form
    12,577.74/18,866.60 = 3,217.78/x
  3. Step 3: Cross multiply
    12,577.74x = 18,866.60 × 3,217.78
  4. Step 4: Simplify right side
    12,577.74x = 60,708,568.15
  5. Step 5: Solve for x
    x = 60,708,568.15/12,577.74
  6. Step 6: Final answer
    x = 4,826.67

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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.