Home / 18,783.27-25,920.92-11,709.72

Finding the Fourth Proportional to 18,783.27, 25,920.92 and 11,709.72

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Solution

The fourth proportional to 18,783.27, 25,920.92 and 11,709.72 is: 16,159.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,783.27 : 25,920.92 = 11,709.72 : x
  2. Step 2: Convert to fraction form
    18,783.27/25,920.92 = 11,709.72/x
  3. Step 3: Cross multiply
    18,783.27x = 25,920.92 × 11,709.72
  4. Step 4: Simplify right side
    18,783.27x = 303,526,744.62
  5. Step 5: Solve for x
    x = 303,526,744.62/18,783.27
  6. Step 6: Final answer
    x = 16,159.42

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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.