Home / 18,211.22-27,327.44-7,680.59

Finding the Fourth Proportional to 18,211.22, 27,327.44 and 7,680.59

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Solution

The fourth proportional to 18,211.22, 27,327.44 and 7,680.59 is: 11,525.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,211.22 : 27,327.44 = 7,680.59 : x
  2. Step 2: Convert to fraction form
    18,211.22/27,327.44 = 7,680.59/x
  3. Step 3: Cross multiply
    18,211.22x = 27,327.44 × 7,680.59
  4. Step 4: Simplify right side
    18,211.22x = 209,890,687.35
  5. Step 5: Solve for x
    x = 209,890,687.35/18,211.22
  6. Step 6: Final answer
    x = 11,525.35

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1.5x scale

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.