Home / 8,137.86-12,206.80-3,204.81

Finding the Fourth Proportional to 8,137.86, 12,206.80 and 3,204.81

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Solution

The fourth proportional to 8,137.86, 12,206.80 and 3,204.81 is: 4,807.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.86 : 12,206.80 = 3,204.81 : x
  2. Step 2: Convert to fraction form
    8,137.86/12,206.80 = 3,204.81/x
  3. Step 3: Cross multiply
    8,137.86x = 12,206.80 × 3,204.81
  4. Step 4: Simplify right side
    8,137.86x = 39,120,474.71
  5. Step 5: Solve for x
    x = 39,120,474.71/8,137.86
  6. Step 6: Final answer
    x = 4,807.22

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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.