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Finding the Fourth Proportional to 12,930.49, 17,843.88 and 7,265.53

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Solution

The fourth proportional to 12,930.49, 17,843.88 and 7,265.53 is: 10,026.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.49 : 17,843.88 = 7,265.53 : x
  2. Step 2: Convert to fraction form
    12,930.49/17,843.88 = 7,265.53/x
  3. Step 3: Cross multiply
    12,930.49x = 17,843.88 × 7,265.53
  4. Step 4: Simplify right side
    12,930.49x = 129,645,245.46
  5. Step 5: Solve for x
    x = 129,645,245.46/12,930.49
  6. Step 6: Final answer
    x = 10,026.32

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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.