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Finding the Fourth Proportional to 8,605.14, 12,908.48 and 3,340.03

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Solution

The fourth proportional to 8,605.14, 12,908.48 and 3,340.03 is: 5,010.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.14 : 12,908.48 = 3,340.03 : x
  2. Step 2: Convert to fraction form
    8,605.14/12,908.48 = 3,340.03/x
  3. Step 3: Cross multiply
    8,605.14x = 12,908.48 × 3,340.03
  4. Step 4: Simplify right side
    8,605.14x = 43,114,710.45
  5. Step 5: Solve for x
    x = 43,114,710.45/8,605.14
  6. Step 6: Final answer
    x = 5,010.34

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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.