Home / 13,956.12-20,932.92-5,189.40

Finding the Fourth Proportional to 13,956.12, 20,932.92 and 5,189.40

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Solution

The fourth proportional to 13,956.12, 20,932.92 and 5,189.40 is: 7,783.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.12 : 20,932.92 = 5,189.40 : x
  2. Step 2: Convert to fraction form
    13,956.12/20,932.92 = 5,189.40/x
  3. Step 3: Cross multiply
    13,956.12x = 20,932.92 × 5,189.40
  4. Step 4: Simplify right side
    13,956.12x = 108,629,295.05
  5. Step 5: Solve for x
    x = 108,629,295.05/13,956.12
  6. Step 6: Final answer
    x = 7,783.63

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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.