Home / 14,942.82-20,619.18-8,975.55

Finding the Fourth Proportional to 14,942.82, 20,619.18 and 8,975.55

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Solution

The fourth proportional to 14,942.82, 20,619.18 and 8,975.55 is: 12,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,942.82 : 20,619.18 = 8,975.55 : x
  2. Step 2: Convert to fraction form
    14,942.82/20,619.18 = 8,975.55/x
  3. Step 3: Cross multiply
    14,942.82x = 20,619.18 × 8,975.55
  4. Step 4: Simplify right side
    14,942.82x = 185,068,481.05
  5. Step 5: Solve for x
    x = 185,068,481.05/14,942.82
  6. Step 6: Final answer
    x = 12,385.11

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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.