Home / 8,761.41-13,140.34-3,212.86

Finding the Fourth Proportional to 8,761.41, 13,140.34 and 3,212.86

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Solution

The fourth proportional to 8,761.41, 13,140.34 and 3,212.86 is: 4,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.41 : 13,140.34 = 3,212.86 : x
  2. Step 2: Convert to fraction form
    8,761.41/13,140.34 = 3,212.86/x
  3. Step 3: Cross multiply
    8,761.41x = 13,140.34 × 3,212.86
  4. Step 4: Simplify right side
    8,761.41x = 42,218,072.77
  5. Step 5: Solve for x
    x = 42,218,072.77/8,761.41
  6. Step 6: Final answer
    x = 4,818.64

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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.