Home / 8,731.35-12,049.61-5,195.09

Finding the Fourth Proportional to 8,731.35, 12,049.61 and 5,195.09

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Solution

The fourth proportional to 8,731.35, 12,049.61 and 5,195.09 is: 7,169.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,731.35 : 12,049.61 = 5,195.09 : x
  2. Step 2: Convert to fraction form
    8,731.35/12,049.61 = 5,195.09/x
  3. Step 3: Cross multiply
    8,731.35x = 12,049.61 × 5,195.09
  4. Step 4: Simplify right side
    8,731.35x = 62,598,722.19
  5. Step 5: Solve for x
    x = 62,598,722.19/8,731.35
  6. Step 6: Final answer
    x = 7,169.42

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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.