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Finding the Fourth Proportional to 12,930.99, 17,843.66 and 7,265.30

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Solution

The fourth proportional to 12,930.99, 17,843.66 and 7,265.30 is: 10,025.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.99 : 17,843.66 = 7,265.30 : x
  2. Step 2: Convert to fraction form
    12,930.99/17,843.66 = 7,265.30/x
  3. Step 3: Cross multiply
    12,930.99x = 17,843.66 × 7,265.30
  4. Step 4: Simplify right side
    12,930.99x = 129,639,471.94
  5. Step 5: Solve for x
    x = 129,639,471.94/12,930.99
  6. Step 6: Final answer
    x = 10,025.49

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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.