Home / 12,143.37-16,757.40-6,765.68

Finding the Fourth Proportional to 12,143.37, 16,757.40 and 6,765.68

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Solution

The fourth proportional to 12,143.37, 16,757.40 and 6,765.68 is: 9,336.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,143.37 : 16,757.40 = 6,765.68 : x
  2. Step 2: Convert to fraction form
    12,143.37/16,757.40 = 6,765.68/x
  3. Step 3: Cross multiply
    12,143.37x = 16,757.40 × 6,765.68
  4. Step 4: Simplify right side
    12,143.37x = 113,375,206.03
  5. Step 5: Solve for x
    x = 113,375,206.03/12,143.37
  6. Step 6: Final answer
    x = 9,336.39

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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.