Home / 12,270.14-18,403.44-3,949.08

Finding the Fourth Proportional to 12,270.14, 18,403.44 and 3,949.08

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Solution

The fourth proportional to 12,270.14, 18,403.44 and 3,949.08 is: 5,923.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.14 : 18,403.44 = 3,949.08 : x
  2. Step 2: Convert to fraction form
    12,270.14/18,403.44 = 3,949.08/x
  3. Step 3: Cross multiply
    12,270.14x = 18,403.44 × 3,949.08
  4. Step 4: Simplify right side
    12,270.14x = 72,676,573.01
  5. Step 5: Solve for x
    x = 72,676,573.01/12,270.14
  6. Step 6: Final answer
    x = 5,923.04

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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.