Home / 18,727.28-25,845.24-10,771.76

Finding the Fourth Proportional to 18,727.28, 25,845.24 and 10,771.76

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Solution

The fourth proportional to 18,727.28, 25,845.24 and 10,771.76 is: 14,865.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,727.28 : 25,845.24 = 10,771.76 : x
  2. Step 2: Convert to fraction form
    18,727.28/25,845.24 = 10,771.76/x
  3. Step 3: Cross multiply
    18,727.28x = 25,845.24 × 10,771.76
  4. Step 4: Simplify right side
    18,727.28x = 278,398,722.42
  5. Step 5: Solve for x
    x = 278,398,722.42/18,727.28
  6. Step 6: Final answer
    x = 14,865.95

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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.