Home / 12,305.07-18,458.42-3,540.06

Finding the Fourth Proportional to 12,305.07, 18,458.42 and 3,540.06

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Solution

The fourth proportional to 12,305.07, 18,458.42 and 3,540.06 is: 5,310.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.07 : 18,458.42 = 3,540.06 : x
  2. Step 2: Convert to fraction form
    12,305.07/18,458.42 = 3,540.06/x
  3. Step 3: Cross multiply
    12,305.07x = 18,458.42 × 3,540.06
  4. Step 4: Simplify right side
    12,305.07x = 65,343,896.60
  5. Step 5: Solve for x
    x = 65,343,896.60/12,305.07
  6. Step 6: Final answer
    x = 5,310.32

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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.