Home / 18,806.28-25,958.38-10,853.70

Finding the Fourth Proportional to 18,806.28, 25,958.38 and 10,853.70

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Solution

The fourth proportional to 18,806.28, 25,958.38 and 10,853.70 is: 14,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,806.28 : 25,958.38 = 10,853.70 : x
  2. Step 2: Convert to fraction form
    18,806.28/25,958.38 = 10,853.70/x
  3. Step 3: Cross multiply
    18,806.28x = 25,958.38 × 10,853.70
  4. Step 4: Simplify right side
    18,806.28x = 281,744,469.01
  5. Step 5: Solve for x
    x = 281,744,469.01/18,806.28
  6. Step 6: Final answer
    x = 14,981.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.