Home / 11,786.40-16,264.80-6,481.17

Finding the Fourth Proportional to 11,786.40, 16,264.80 and 6,481.17

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Solution

The fourth proportional to 11,786.40, 16,264.80 and 6,481.17 is: 8,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.40 : 16,264.80 = 6,481.17 : x
  2. Step 2: Convert to fraction form
    11,786.40/16,264.80 = 6,481.17/x
  3. Step 3: Cross multiply
    11,786.40x = 16,264.80 × 6,481.17
  4. Step 4: Simplify right side
    11,786.40x = 105,414,933.82
  5. Step 5: Solve for x
    x = 105,414,933.82/11,786.40
  6. Step 6: Final answer
    x = 8,943.78

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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.