Home / 7,914.64-11,861.68-3,229.16

Finding the Fourth Proportional to 7,914.64, 11,861.68 and 3,229.16

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Solution

The fourth proportional to 7,914.64, 11,861.68 and 3,229.16 is: 4,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.64 : 11,861.68 = 3,229.16 : x
  2. Step 2: Convert to fraction form
    7,914.64/11,861.68 = 3,229.16/x
  3. Step 3: Cross multiply
    7,914.64x = 11,861.68 × 3,229.16
  4. Step 4: Simplify right side
    7,914.64x = 38,303,262.59
  5. Step 5: Solve for x
    x = 38,303,262.59/7,914.64
  6. Step 6: Final answer
    x = 4,839.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.