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Finding the Fourth Proportional to 8,805, 12,151.26 and 5,079

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Solution

The fourth proportional to 8,805, 12,151.26 and 5,079 is: 7,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805 : 12,151.26 = 5,079 : x
  2. Step 2: Convert to fraction form
    8,805/12,151.26 = 5,079/x
  3. Step 3: Cross multiply
    8,805x = 12,151.26 × 5,079
  4. Step 4: Simplify right side
    8,805x = 61,716,249.54
  5. Step 5: Solve for x
    x = 61,716,249.54/8,805
  6. Step 6: Final answer
    x = 7,009.23

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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.