Home / 18,769.86-25,907.58-11,221.34

Finding the Fourth Proportional to 18,769.86, 25,907.58 and 11,221.34

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Solution

The fourth proportional to 18,769.86, 25,907.58 and 11,221.34 is: 15,488.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,769.86 : 25,907.58 = 11,221.34 : x
  2. Step 2: Convert to fraction form
    18,769.86/25,907.58 = 11,221.34/x
  3. Step 3: Cross multiply
    18,769.86x = 25,907.58 × 11,221.34
  4. Step 4: Simplify right side
    18,769.86x = 290,717,634.22
  5. Step 5: Solve for x
    x = 290,717,634.22/18,769.86
  6. Step 6: Final answer
    x = 15,488.54

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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.