Home / 8,934.42-13,399.80-3,385.86

Finding the Fourth Proportional to 8,934.42, 13,399.80 and 3,385.86

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Solution

The fourth proportional to 8,934.42, 13,399.80 and 3,385.86 is: 5,078.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,934.42 : 13,399.80 = 3,385.86 : x
  2. Step 2: Convert to fraction form
    8,934.42/13,399.80 = 3,385.86/x
  3. Step 3: Cross multiply
    8,934.42x = 13,399.80 × 3,385.86
  4. Step 4: Simplify right side
    8,934.42x = 45,369,846.83
  5. Step 5: Solve for x
    x = 45,369,846.83/8,934.42
  6. Step 6: Final answer
    x = 5,078.10

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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.