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Finding the Fourth Proportional to 12,515.52, 17,267.52 and 8,324.48

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Solution

The fourth proportional to 12,515.52, 17,267.52 and 8,324.48 is: 11,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.52 : 17,267.52 = 8,324.48 : x
  2. Step 2: Convert to fraction form
    12,515.52/17,267.52 = 8,324.48/x
  3. Step 3: Cross multiply
    12,515.52x = 17,267.52 × 8,324.48
  4. Step 4: Simplify right side
    12,515.52x = 143,743,124.89
  5. Step 5: Solve for x
    x = 143,743,124.89/12,515.52
  6. Step 6: Final answer
    x = 11,485.19

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Similar ratio
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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.