Home / 8,195.12-11,309.46-4,658.30

Finding the Fourth Proportional to 8,195.12, 11,309.46 and 4,658.30

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Solution

The fourth proportional to 8,195.12, 11,309.46 and 4,658.30 is: 6,428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,195.12 : 11,309.46 = 4,658.30 : x
  2. Step 2: Convert to fraction form
    8,195.12/11,309.46 = 4,658.30/x
  3. Step 3: Cross multiply
    8,195.12x = 11,309.46 × 4,658.30
  4. Step 4: Simplify right side
    8,195.12x = 52,682,857.52
  5. Step 5: Solve for x
    x = 52,682,857.52/8,195.12
  6. Step 6: Final answer
    x = 6,428.56

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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.