Home / 18,956.97-28,439.09-5,809.46

Finding the Fourth Proportional to 18,956.97, 28,439.09 and 5,809.46

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Solution

The fourth proportional to 18,956.97, 28,439.09 and 5,809.46 is: 8,715.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,956.97 : 28,439.09 = 5,809.46 : x
  2. Step 2: Convert to fraction form
    18,956.97/28,439.09 = 5,809.46/x
  3. Step 3: Cross multiply
    18,956.97x = 28,439.09 × 5,809.46
  4. Step 4: Simplify right side
    18,956.97x = 165,215,584.55
  5. Step 5: Solve for x
    x = 165,215,584.55/18,956.97
  6. Step 6: Final answer
    x = 8,715.29

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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.