Home / 12,305.37-18,458.16-5,279.48

Finding the Fourth Proportional to 12,305.37, 18,458.16 and 5,279.48

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Solution

The fourth proportional to 12,305.37, 18,458.16 and 5,279.48 is: 7,919.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.37 : 18,458.16 = 5,279.48 : x
  2. Step 2: Convert to fraction form
    12,305.37/18,458.16 = 5,279.48/x
  3. Step 3: Cross multiply
    12,305.37x = 18,458.16 × 5,279.48
  4. Step 4: Simplify right side
    12,305.37x = 97,449,486.56
  5. Step 5: Solve for x
    x = 97,449,486.56/12,305.37
  6. Step 6: Final answer
    x = 7,919.27

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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.