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Finding the Fourth Proportional to 6,996, 10,488.96 and 2,613.12

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Solution

The fourth proportional to 6,996, 10,488.96 and 2,613.12 is: 3,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,996 : 10,488.96 = 2,613.12 : x
  2. Step 2: Convert to fraction form
    6,996/10,488.96 = 2,613.12/x
  3. Step 3: Cross multiply
    6,996x = 10,488.96 × 2,613.12
  4. Step 4: Simplify right side
    6,996x = 27,408,911.16
  5. Step 5: Solve for x
    x = 27,408,911.16/6,996
  6. Step 6: Final answer
    x = 3,917.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.