Home / 13,949.88-20,958.96-8,954.40

Finding the Fourth Proportional to 13,949.88, 20,958.96 and 8,954.40

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Solution

The fourth proportional to 13,949.88, 20,958.96 and 8,954.40 is: 13,453.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,949.88 : 20,958.96 = 8,954.40 : x
  2. Step 2: Convert to fraction form
    13,949.88/20,958.96 = 8,954.40/x
  3. Step 3: Cross multiply
    13,949.88x = 20,958.96 × 8,954.40
  4. Step 4: Simplify right side
    13,949.88x = 187,674,911.42
  5. Step 5: Solve for x
    x = 187,674,911.42/13,949.88
  6. Step 6: Final answer
    x = 13,453.51

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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.