Home / 12,768.96-19,160.95-5,372.85

Finding the Fourth Proportional to 12,768.96, 19,160.95 and 5,372.85

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Solution

The fourth proportional to 12,768.96, 19,160.95 and 5,372.85 is: 8,062.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,768.96 : 19,160.95 = 5,372.85 : x
  2. Step 2: Convert to fraction form
    12,768.96/19,160.95 = 5,372.85/x
  3. Step 3: Cross multiply
    12,768.96x = 19,160.95 × 5,372.85
  4. Step 4: Simplify right side
    12,768.96x = 102,948,910.21
  5. Step 5: Solve for x
    x = 102,948,910.21/12,768.96
  6. Step 6: Final answer
    x = 8,062.44

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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.