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Finding the Fourth Proportional to 10,936, 15,091.68 and 6,746.68

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Solution

The fourth proportional to 10,936, 15,091.68 and 6,746.68 is: 9,310.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,936 : 15,091.68 = 6,746.68 : x
  2. Step 2: Convert to fraction form
    10,936/15,091.68 = 6,746.68/x
  3. Step 3: Cross multiply
    10,936x = 15,091.68 × 6,746.68
  4. Step 4: Simplify right side
    10,936x = 101,818,735.62
  5. Step 5: Solve for x
    x = 101,818,735.62/10,936
  6. Step 6: Final answer
    x = 9,310.42

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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.