Home / 12,540.49-17,306.44-7,163.40

Finding the Fourth Proportional to 12,540.49, 17,306.44 and 7,163.40

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Solution

The fourth proportional to 12,540.49, 17,306.44 and 7,163.40 is: 9,885.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.49 : 17,306.44 = 7,163.40 : x
  2. Step 2: Convert to fraction form
    12,540.49/17,306.44 = 7,163.40/x
  3. Step 3: Cross multiply
    12,540.49x = 17,306.44 × 7,163.40
  4. Step 4: Simplify right side
    12,540.49x = 123,972,952.30
  5. Step 5: Solve for x
    x = 123,972,952.30/12,540.49
  6. Step 6: Final answer
    x = 9,885.81

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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.