Home / 13,821.83-20,736.32-3,961.83

Finding the Fourth Proportional to 13,821.83, 20,736.32 and 3,961.83

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Solution

The fourth proportional to 13,821.83, 20,736.32 and 3,961.83 is: 5,943.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.83 : 20,736.32 = 3,961.83 : x
  2. Step 2: Convert to fraction form
    13,821.83/20,736.32 = 3,961.83/x
  3. Step 3: Cross multiply
    13,821.83x = 20,736.32 × 3,961.83
  4. Step 4: Simplify right side
    13,821.83x = 82,153,774.67
  5. Step 5: Solve for x
    x = 82,153,774.67/13,821.83
  6. Step 6: Final answer
    x = 5,943.77

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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.