Home / 8,933.72-13,400.70-3,385.58

Finding the Fourth Proportional to 8,933.72, 13,400.70 and 3,385.58

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Solution

The fourth proportional to 8,933.72, 13,400.70 and 3,385.58 is: 5,078.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,933.72 : 13,400.70 = 3,385.58 : x
  2. Step 2: Convert to fraction form
    8,933.72/13,400.70 = 3,385.58/x
  3. Step 3: Cross multiply
    8,933.72x = 13,400.70 × 3,385.58
  4. Step 4: Simplify right side
    8,933.72x = 45,369,141.91
  5. Step 5: Solve for x
    x = 45,369,141.91/8,933.72
  6. Step 6: Final answer
    x = 5,078.42

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1.5x scale

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.