Home / 18,783.15-25,920.79-10,169.43

Finding the Fourth Proportional to 18,783.15, 25,920.79 and 10,169.43

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Solution

The fourth proportional to 18,783.15, 25,920.79 and 10,169.43 is: 14,033.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.15 : 25,920.79 = 10,169.43 : x
  2. Step 2: Convert to fraction form
    18,783.15/25,920.79 = 10,169.43/x
  3. Step 3: Cross multiply
    18,783.15x = 25,920.79 × 10,169.43
  4. Step 4: Simplify right side
    18,783.15x = 263,599,659.45
  5. Step 5: Solve for x
    x = 263,599,659.45/18,783.15
  6. Step 6: Final answer
    x = 14,033.84

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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.