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Finding the Fourth Proportional to 6,668.45, 9,994.02 and 2,715.11

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Solution

The fourth proportional to 6,668.45, 9,994.02 and 2,715.11 is: 4,069.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,668.45 : 9,994.02 = 2,715.11 : x
  2. Step 2: Convert to fraction form
    6,668.45/9,994.02 = 2,715.11/x
  3. Step 3: Cross multiply
    6,668.45x = 9,994.02 × 2,715.11
  4. Step 4: Simplify right side
    6,668.45x = 27,134,863.64
  5. Step 5: Solve for x
    x = 27,134,863.64/6,668.45
  6. Step 6: Final answer
    x = 4,069.14

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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.