Home / 13,956.09-20,905.84-6,448.97

Finding the Fourth Proportional to 13,956.09, 20,905.84 and 6,448.97

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Solution

The fourth proportional to 13,956.09, 20,905.84 and 6,448.97 is: 9,660.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,956.09 : 20,905.84 = 6,448.97 : x
  2. Step 2: Convert to fraction form
    13,956.09/20,905.84 = 6,448.97/x
  3. Step 3: Cross multiply
    13,956.09x = 20,905.84 × 6,448.97
  4. Step 4: Simplify right side
    13,956.09x = 134,821,134.98
  5. Step 5: Solve for x
    x = 134,821,134.98/13,956.09
  6. Step 6: Final answer
    x = 9,660.38

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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.