Home / 11,729.62-16,186.44-6,424.48

Finding the Fourth Proportional to 11,729.62, 16,186.44 and 6,424.48

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Solution

The fourth proportional to 11,729.62, 16,186.44 and 6,424.48 is: 8,865.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.62 : 16,186.44 = 6,424.48 : x
  2. Step 2: Convert to fraction form
    11,729.62/16,186.44 = 6,424.48/x
  3. Step 3: Cross multiply
    11,729.62x = 16,186.44 × 6,424.48
  4. Step 4: Simplify right side
    11,729.62x = 103,989,460.05
  5. Step 5: Solve for x
    x = 103,989,460.05/11,729.62
  6. Step 6: Final answer
    x = 8,865.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.