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Finding the Fourth Proportional to 12,694.77, 17,508.04 and 9,515.52

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Solution

The fourth proportional to 12,694.77, 17,508.04 and 9,515.52 is: 13,123.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,694.77 : 17,508.04 = 9,515.52 : x
  2. Step 2: Convert to fraction form
    12,694.77/17,508.04 = 9,515.52/x
  3. Step 3: Cross multiply
    12,694.77x = 17,508.04 × 9,515.52
  4. Step 4: Simplify right side
    12,694.77x = 166,598,104.78
  5. Step 5: Solve for x
    x = 166,598,104.78/12,694.77
  6. Step 6: Final answer
    x = 13,123.37

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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.