Home / 13,958.18-20,937.89-3,963.63

Finding the Fourth Proportional to 13,958.18, 20,937.89 and 3,963.63

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Solution

The fourth proportional to 13,958.18, 20,937.89 and 3,963.63 is: 5,945.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.18 : 20,937.89 = 3,963.63 : x
  2. Step 2: Convert to fraction form
    13,958.18/20,937.89 = 3,963.63/x
  3. Step 3: Cross multiply
    13,958.18x = 20,937.89 × 3,963.63
  4. Step 4: Simplify right side
    13,958.18x = 82,990,058.85
  5. Step 5: Solve for x
    x = 82,990,058.85/13,958.18
  6. Step 6: Final answer
    x = 5,945.62

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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.