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Finding the Fourth Proportional to 9,610.50, 14,418.18 and 2,685

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Solution

The fourth proportional to 9,610.50, 14,418.18 and 2,685 is: 4,028.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,610.50 : 14,418.18 = 2,685 : x
  2. Step 2: Convert to fraction form
    9,610.50/14,418.18 = 2,685/x
  3. Step 3: Cross multiply
    9,610.50x = 14,418.18 × 2,685
  4. Step 4: Simplify right side
    9,610.50x = 38,712,813.30
  5. Step 5: Solve for x
    x = 38,712,813.30/9,610.50
  6. Step 6: Final answer
    x = 4,028.18

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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.