Home / 8,126.48-12,196.80-3,969.56

Finding the Fourth Proportional to 8,126.48, 12,196.80 and 3,969.56

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Solution

The fourth proportional to 8,126.48, 12,196.80 and 3,969.56 is: 5,957.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.48 : 12,196.80 = 3,969.56 : x
  2. Step 2: Convert to fraction form
    8,126.48/12,196.80 = 3,969.56/x
  3. Step 3: Cross multiply
    8,126.48x = 12,196.80 × 3,969.56
  4. Step 4: Simplify right side
    8,126.48x = 48,415,929.41
  5. Step 5: Solve for x
    x = 48,415,929.41/8,126.48
  6. Step 6: Final answer
    x = 5,957.80

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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.