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Finding the Fourth Proportional to 13,627.57, 18,806.57 and 8,324.77

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Solution

The fourth proportional to 13,627.57, 18,806.57 and 8,324.77 is: 11,488.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,627.57 : 18,806.57 = 8,324.77 : x
  2. Step 2: Convert to fraction form
    13,627.57/18,806.57 = 8,324.77/x
  3. Step 3: Cross multiply
    13,627.57x = 18,806.57 × 8,324.77
  4. Step 4: Simplify right side
    13,627.57x = 156,560,369.74
  5. Step 5: Solve for x
    x = 156,560,369.74/13,627.57
  6. Step 6: Final answer
    x = 11,488.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.