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Finding the Fourth Proportional to 7,687.61, 11,524.32 and 3,010.68

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Solution

The fourth proportional to 7,687.61, 11,524.32 and 3,010.68 is: 4,513.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,687.61 : 11,524.32 = 3,010.68 : x
  2. Step 2: Convert to fraction form
    7,687.61/11,524.32 = 3,010.68/x
  3. Step 3: Cross multiply
    7,687.61x = 11,524.32 × 3,010.68
  4. Step 4: Simplify right side
    7,687.61x = 34,696,039.74
  5. Step 5: Solve for x
    x = 34,696,039.74/7,687.61
  6. Step 6: Final answer
    x = 4,513.24

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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.