Home / 18,620.94-25,698.36-10,665.73

Finding the Fourth Proportional to 18,620.94, 25,698.36 and 10,665.73

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Solution

The fourth proportional to 18,620.94, 25,698.36 and 10,665.73 is: 14,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,620.94 : 25,698.36 = 10,665.73 : x
  2. Step 2: Convert to fraction form
    18,620.94/25,698.36 = 10,665.73/x
  3. Step 3: Cross multiply
    18,620.94x = 25,698.36 × 10,665.73
  4. Step 4: Simplify right side
    18,620.94x = 274,091,769.20
  5. Step 5: Solve for x
    x = 274,091,769.20/18,620.94
  6. Step 6: Final answer
    x = 14,719.55

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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.