Home / 13,827.78-20,735.55-3,964.82

Finding the Fourth Proportional to 13,827.78, 20,735.55 and 3,964.82

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Solution

The fourth proportional to 13,827.78, 20,735.55 and 3,964.82 is: 5,945.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,827.78 : 20,735.55 = 3,964.82 : x
  2. Step 2: Convert to fraction form
    13,827.78/20,735.55 = 3,964.82/x
  3. Step 3: Cross multiply
    13,827.78x = 20,735.55 × 3,964.82
  4. Step 4: Simplify right side
    13,827.78x = 82,212,619.67
  5. Step 5: Solve for x
    x = 82,212,619.67/13,827.78
  6. Step 6: Final answer
    x = 5,945.47

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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.