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Finding the Fourth Proportional to 13,684.86, 20,527.32 and 4,450.86

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Solution

The fourth proportional to 13,684.86, 20,527.32 and 4,450.86 is: 6,676.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,684.86 : 20,527.32 = 4,450.86 : x
  2. Step 2: Convert to fraction form
    13,684.86/20,527.32 = 4,450.86/x
  3. Step 3: Cross multiply
    13,684.86x = 20,527.32 × 4,450.86
  4. Step 4: Simplify right side
    13,684.86x = 91,364,227.50
  5. Step 5: Solve for x
    x = 91,364,227.50/13,684.86
  6. Step 6: Final answer
    x = 6,676.30

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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.