Home / 11,375.28-15,696.47-6,339.13

Finding the Fourth Proportional to 11,375.28, 15,696.47 and 6,339.13

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Solution

The fourth proportional to 11,375.28, 15,696.47 and 6,339.13 is: 8,747.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,375.28 : 15,696.47 = 6,339.13 : x
  2. Step 2: Convert to fraction form
    11,375.28/15,696.47 = 6,339.13/x
  3. Step 3: Cross multiply
    11,375.28x = 15,696.47 × 6,339.13
  4. Step 4: Simplify right side
    11,375.28x = 99,501,940.48
  5. Step 5: Solve for x
    x = 99,501,940.48/11,375.28
  6. Step 6: Final answer
    x = 8,747.21

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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.