Home / 20,698.62-28,563.96-11,267.34

Finding the Fourth Proportional to 20,698.62, 28,563.96 and 11,267.34

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Solution

The fourth proportional to 20,698.62, 28,563.96 and 11,267.34 is: 15,548.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698.62 : 28,563.96 = 11,267.34 : x
  2. Step 2: Convert to fraction form
    20,698.62/28,563.96 = 11,267.34/x
  3. Step 3: Cross multiply
    20,698.62x = 28,563.96 × 11,267.34
  4. Step 4: Simplify right side
    20,698.62x = 321,839,849.07
  5. Step 5: Solve for x
    x = 321,839,849.07/20,698.62
  6. Step 6: Final answer
    x = 15,548.86

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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.