Home / 18,724.05-25,843.23-12,769.92

Finding the Fourth Proportional to 18,724.05, 25,843.23 and 12,769.92

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Solution

The fourth proportional to 18,724.05, 25,843.23 and 12,769.92 is: 17,625.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724.05 : 25,843.23 = 12,769.92 : x
  2. Step 2: Convert to fraction form
    18,724.05/25,843.23 = 12,769.92/x
  3. Step 3: Cross multiply
    18,724.05x = 25,843.23 × 12,769.92
  4. Step 4: Simplify right side
    18,724.05x = 330,015,979.64
  5. Step 5: Solve for x
    x = 330,015,979.64/18,724.05
  6. Step 6: Final answer
    x = 17,625.25

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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.