Home / 8,138.12-11,230.67-4,601.12

Finding the Fourth Proportional to 8,138.12, 11,230.67 and 4,601.12

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Solution

The fourth proportional to 8,138.12, 11,230.67 and 4,601.12 is: 6,349.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138.12 : 11,230.67 = 4,601.12 : x
  2. Step 2: Convert to fraction form
    8,138.12/11,230.67 = 4,601.12/x
  3. Step 3: Cross multiply
    8,138.12x = 11,230.67 × 4,601.12
  4. Step 4: Simplify right side
    8,138.12x = 51,673,660.35
  5. Step 5: Solve for x
    x = 51,673,660.35/8,138.12
  6. Step 6: Final answer
    x = 6,349.58

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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.