Home / 12,625.75-17,425.56-9,930.88

Finding the Fourth Proportional to 12,625.75, 17,425.56 and 9,930.88

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Solution

The fourth proportional to 12,625.75, 17,425.56 and 9,930.88 is: 13,706.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.75 : 17,425.56 = 9,930.88 : x
  2. Step 2: Convert to fraction form
    12,625.75/17,425.56 = 9,930.88/x
  3. Step 3: Cross multiply
    12,625.75x = 17,425.56 × 9,930.88
  4. Step 4: Simplify right side
    12,625.75x = 173,051,145.29
  5. Step 5: Solve for x
    x = 173,051,145.29/12,625.75
  6. Step 6: Final answer
    x = 13,706.21

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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.