Home / 8,152.86-12,225.09-3,986.64

Finding the Fourth Proportional to 8,152.86, 12,225.09 and 3,986.64

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Solution

The fourth proportional to 8,152.86, 12,225.09 and 3,986.64 is: 5,977.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,152.86 : 12,225.09 = 3,986.64 : x
  2. Step 2: Convert to fraction form
    8,152.86/12,225.09 = 3,986.64/x
  3. Step 3: Cross multiply
    8,152.86x = 12,225.09 × 3,986.64
  4. Step 4: Simplify right side
    8,152.86x = 48,737,032.80
  5. Step 5: Solve for x
    x = 48,737,032.80/8,152.86
  6. Step 6: Final answer
    x = 5,977.91

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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.