Home / 11,127.76-15,356.28-6,936

Finding the Fourth Proportional to 11,127.76, 15,356.28 and 6,936

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Solution

The fourth proportional to 11,127.76, 15,356.28 and 6,936 is: 9,571.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.76 : 15,356.28 = 6,936 : x
  2. Step 2: Convert to fraction form
    11,127.76/15,356.28 = 6,936/x
  3. Step 3: Cross multiply
    11,127.76x = 15,356.28 × 6,936
  4. Step 4: Simplify right side
    11,127.76x = 106,511,158.08
  5. Step 5: Solve for x
    x = 106,511,158.08/11,127.76
  6. Step 6: Final answer
    x = 9,571.66

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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.