Home / 10,936.76-16,380.51-7,664.46

Finding the Fourth Proportional to 10,936.76, 16,380.51 and 7,664.46

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Solution

The fourth proportional to 10,936.76, 16,380.51 and 7,664.46 is: 11,479.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936.76 : 16,380.51 = 7,664.46 : x
  2. Step 2: Convert to fraction form
    10,936.76/16,380.51 = 7,664.46/x
  3. Step 3: Cross multiply
    10,936.76x = 16,380.51 × 7,664.46
  4. Step 4: Simplify right side
    10,936.76x = 125,547,716.62
  5. Step 5: Solve for x
    x = 125,547,716.62/10,936.76
  6. Step 6: Final answer
    x = 11,479.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.