Home / 14,500.46-20,012.24-8,128.09

Finding the Fourth Proportional to 14,500.46, 20,012.24 and 8,128.09

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Solution

The fourth proportional to 14,500.46, 20,012.24 and 8,128.09 is: 11,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500.46 : 20,012.24 = 8,128.09 : x
  2. Step 2: Convert to fraction form
    14,500.46/20,012.24 = 8,128.09/x
  3. Step 3: Cross multiply
    14,500.46x = 20,012.24 × 8,128.09
  4. Step 4: Simplify right side
    14,500.46x = 162,661,197.15
  5. Step 5: Solve for x
    x = 162,661,197.15/14,500.46
  6. Step 6: Final answer
    x = 11,217.66

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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.