Home / 10,786.77-16,180.07-2,781.52

Finding the Fourth Proportional to 10,786.77, 16,180.07 and 2,781.52

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Solution

The fourth proportional to 10,786.77, 16,180.07 and 2,781.52 is: 4,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.77 : 16,180.07 = 2,781.52 : x
  2. Step 2: Convert to fraction form
    10,786.77/16,180.07 = 2,781.52/x
  3. Step 3: Cross multiply
    10,786.77x = 16,180.07 × 2,781.52
  4. Step 4: Simplify right side
    10,786.77x = 45,005,133.95
  5. Step 5: Solve for x
    x = 45,005,133.95/10,786.77
  6. Step 6: Final answer
    x = 4,172.25

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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.