Home / 12,777.55-17,630.82-11,744.06

Finding the Fourth Proportional to 12,777.55, 17,630.82 and 11,744.06

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Solution

The fourth proportional to 12,777.55, 17,630.82 and 11,744.06 is: 16,204.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.55 : 17,630.82 = 11,744.06 : x
  2. Step 2: Convert to fraction form
    12,777.55/17,630.82 = 11,744.06/x
  3. Step 3: Cross multiply
    12,777.55x = 17,630.82 × 11,744.06
  4. Step 4: Simplify right side
    12,777.55x = 207,057,261.05
  5. Step 5: Solve for x
    x = 207,057,261.05/12,777.55
  6. Step 6: Final answer
    x = 16,204.78

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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.