Home / 12,627.32-17,425.36-7,321.80

Finding the Fourth Proportional to 12,627.32, 17,425.36 and 7,321.80

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Solution

The fourth proportional to 12,627.32, 17,425.36 and 7,321.80 is: 10,103.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,627.32 : 17,425.36 = 7,321.80 : x
  2. Step 2: Convert to fraction form
    12,627.32/17,425.36 = 7,321.80/x
  3. Step 3: Cross multiply
    12,627.32x = 17,425.36 × 7,321.80
  4. Step 4: Simplify right side
    12,627.32x = 127,585,000.85
  5. Step 5: Solve for x
    x = 127,585,000.85/12,627.32
  6. Step 6: Final answer
    x = 10,103.89

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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.