Home / 14,942.80-20,616.52-8,653.96

Finding the Fourth Proportional to 14,942.80, 20,616.52 and 8,653.96

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Solution

The fourth proportional to 14,942.80, 20,616.52 and 8,653.96 is: 11,939.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.80 : 20,616.52 = 8,653.96 : x
  2. Step 2: Convert to fraction form
    14,942.80/20,616.52 = 8,653.96/x
  3. Step 3: Cross multiply
    14,942.80x = 20,616.52 × 8,653.96
  4. Step 4: Simplify right side
    14,942.80x = 178,414,539.42
  5. Step 5: Solve for x
    x = 178,414,539.42/14,942.80
  6. Step 6: Final answer
    x = 11,939.83

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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.