Home / 14,500.50-20,011.31-8,450.61

Finding the Fourth Proportional to 14,500.50, 20,011.31 and 8,450.61

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Solution

The fourth proportional to 14,500.50, 20,011.31 and 8,450.61 is: 11,662.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500.50 : 20,011.31 = 8,450.61 : x
  2. Step 2: Convert to fraction form
    14,500.50/20,011.31 = 8,450.61/x
  3. Step 3: Cross multiply
    14,500.50x = 20,011.31 × 8,450.61
  4. Step 4: Simplify right side
    14,500.50x = 169,107,734.15
  5. Step 5: Solve for x
    x = 169,107,734.15/14,500.50
  6. Step 6: Final answer
    x = 11,662.20

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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.