Home / 6,636.12-9,162.12-4,121.87

Finding the Fourth Proportional to 6,636.12, 9,162.12 and 4,121.87

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Solution

The fourth proportional to 6,636.12, 9,162.12 and 4,121.87 is: 5,690.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.12 : 9,162.12 = 4,121.87 : x
  2. Step 2: Convert to fraction form
    6,636.12/9,162.12 = 4,121.87/x
  3. Step 3: Cross multiply
    6,636.12x = 9,162.12 × 4,121.87
  4. Step 4: Simplify right side
    6,636.12x = 37,765,034.35
  5. Step 5: Solve for x
    x = 37,765,034.35/6,636.12
  6. Step 6: Final answer
    x = 5,690.83

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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.