Home / 14,576.28-20,115.09-8,288.61

Finding the Fourth Proportional to 14,576.28, 20,115.09 and 8,288.61

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Solution

The fourth proportional to 14,576.28, 20,115.09 and 8,288.61 is: 11,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,576.28 : 20,115.09 = 8,288.61 : x
  2. Step 2: Convert to fraction form
    14,576.28/20,115.09 = 8,288.61/x
  3. Step 3: Cross multiply
    14,576.28x = 20,115.09 × 8,288.61
  4. Step 4: Simplify right side
    14,576.28x = 166,726,136.12
  5. Step 5: Solve for x
    x = 166,726,136.12/14,576.28
  6. Step 6: Final answer
    x = 11,438.18

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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.