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Finding the Fourth Proportional to 12,634.70, 17,437.08 and 7,257.89

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Solution

The fourth proportional to 12,634.70, 17,437.08 and 7,257.89 is: 10,016.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,634.70 : 17,437.08 = 7,257.89 : x
  2. Step 2: Convert to fraction form
    12,634.70/17,437.08 = 7,257.89/x
  3. Step 3: Cross multiply
    12,634.70x = 17,437.08 × 7,257.89
  4. Step 4: Simplify right side
    12,634.70x = 126,556,408.56
  5. Step 5: Solve for x
    x = 126,556,408.56/12,634.70
  6. Step 6: Final answer
    x = 10,016.57

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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.