Home / 12,625.26-17,421.57-7,321.80

Finding the Fourth Proportional to 12,625.26, 17,421.57 and 7,321.80

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Solution

The fourth proportional to 12,625.26, 17,421.57 and 7,321.80 is: 10,103.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.26 : 17,421.57 = 7,321.80 : x
  2. Step 2: Convert to fraction form
    12,625.26/17,421.57 = 7,321.80/x
  3. Step 3: Cross multiply
    12,625.26x = 17,421.57 × 7,321.80
  4. Step 4: Simplify right side
    12,625.26x = 127,557,251.23
  5. Step 5: Solve for x
    x = 127,557,251.23/12,625.26
  6. Step 6: Final answer
    x = 10,103.34

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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.