Home / 14,757.13-20,357.62-8,786.89

Finding the Fourth Proportional to 14,757.13, 20,357.62 and 8,786.89

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Solution

The fourth proportional to 14,757.13, 20,357.62 and 8,786.89 is: 12,121.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,757.13 : 20,357.62 = 8,786.89 : x
  2. Step 2: Convert to fraction form
    14,757.13/20,357.62 = 8,786.89/x
  3. Step 3: Cross multiply
    14,757.13x = 20,357.62 × 8,786.89
  4. Step 4: Simplify right side
    14,757.13x = 178,880,167.60
  5. Step 5: Solve for x
    x = 178,880,167.60/14,757.13
  6. Step 6: Final answer
    x = 12,121.61

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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.