Home / 11,729.68-16,187.44-6,424.96

Finding the Fourth Proportional to 11,729.68, 16,187.44 and 6,424.96

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Solution

The fourth proportional to 11,729.68, 16,187.44 and 6,424.96 is: 8,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,729.68 : 16,187.44 = 6,424.96 : x
  2. Step 2: Convert to fraction form
    11,729.68/16,187.44 = 6,424.96/x
  3. Step 3: Cross multiply
    11,729.68x = 16,187.44 × 6,424.96
  4. Step 4: Simplify right side
    11,729.68x = 104,003,654.50
  5. Step 5: Solve for x
    x = 104,003,654.50/11,729.68
  6. Step 6: Final answer
    x = 8,866.71

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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.