Home / 7,844.28-11,709.99-6,721.61

Finding the Fourth Proportional to 7,844.28, 11,709.99 and 6,721.61

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Solution

The fourth proportional to 7,844.28, 11,709.99 and 6,721.61 is: 10,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,844.28 : 11,709.99 = 6,721.61 : x
  2. Step 2: Convert to fraction form
    7,844.28/11,709.99 = 6,721.61/x
  3. Step 3: Cross multiply
    7,844.28x = 11,709.99 × 6,721.61
  4. Step 4: Simplify right side
    7,844.28x = 78,709,985.88
  5. Step 5: Solve for x
    x = 78,709,985.88/7,844.28
  6. Step 6: Final answer
    x = 10,034.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.