Home / 13,851.12-20,795.14-11,784.42

Finding the Fourth Proportional to 13,851.12, 20,795.14 and 11,784.42

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Solution

The fourth proportional to 13,851.12, 20,795.14 and 11,784.42 is: 17,692.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.12 : 20,795.14 = 11,784.42 : x
  2. Step 2: Convert to fraction form
    13,851.12/20,795.14 = 11,784.42/x
  3. Step 3: Cross multiply
    13,851.12x = 20,795.14 × 11,784.42
  4. Step 4: Simplify right side
    13,851.12x = 245,058,663.72
  5. Step 5: Solve for x
    x = 245,058,663.72/13,851.12
  6. Step 6: Final answer
    x = 17,692.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.