Home / 11,754.96-16,221.82-6,449.84

Finding the Fourth Proportional to 11,754.96, 16,221.82 and 6,449.84

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Solution

The fourth proportional to 11,754.96, 16,221.82 and 6,449.84 is: 8,900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,754.96 : 16,221.82 = 6,449.84 : x
  2. Step 2: Convert to fraction form
    11,754.96/16,221.82 = 6,449.84/x
  3. Step 3: Cross multiply
    11,754.96x = 16,221.82 × 6,449.84
  4. Step 4: Simplify right side
    11,754.96x = 104,628,143.51
  5. Step 5: Solve for x
    x = 104,628,143.51/11,754.96
  6. Step 6: Final answer
    x = 8,900.77

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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.