Home / 12,219.07-18,329.96-3,896.18

Finding the Fourth Proportional to 12,219.07, 18,329.96 and 3,896.18

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Solution

The fourth proportional to 12,219.07, 18,329.96 and 3,896.18 is: 5,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.07 : 18,329.96 = 3,896.18 : x
  2. Step 2: Convert to fraction form
    12,219.07/18,329.96 = 3,896.18/x
  3. Step 3: Cross multiply
    12,219.07x = 18,329.96 × 3,896.18
  4. Step 4: Simplify right side
    12,219.07x = 71,416,823.55
  5. Step 5: Solve for x
    x = 71,416,823.55/12,219.07
  6. Step 6: Final answer
    x = 5,844.70

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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.