Home / 18,941.82-28,427.31-8,560.86

Finding the Fourth Proportional to 18,941.82, 28,427.31 and 8,560.86

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Solution

The fourth proportional to 18,941.82, 28,427.31 and 8,560.86 is: 12,847.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.82 : 28,427.31 = 8,560.86 : x
  2. Step 2: Convert to fraction form
    18,941.82/28,427.31 = 8,560.86/x
  3. Step 3: Cross multiply
    18,941.82x = 28,427.31 × 8,560.86
  4. Step 4: Simplify right side
    18,941.82x = 243,362,221.09
  5. Step 5: Solve for x
    x = 243,362,221.09/18,941.82
  6. Step 6: Final answer
    x = 12,847.88

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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.