Home / 12,425.60-17,147.40-6,760.44

Finding the Fourth Proportional to 12,425.60, 17,147.40 and 6,760.44

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Solution

The fourth proportional to 12,425.60, 17,147.40 and 6,760.44 is: 9,329.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,425.60 : 17,147.40 = 6,760.44 : x
  2. Step 2: Convert to fraction form
    12,425.60/17,147.40 = 6,760.44/x
  3. Step 3: Cross multiply
    12,425.60x = 17,147.40 × 6,760.44
  4. Step 4: Simplify right side
    12,425.60x = 115,923,968.86
  5. Step 5: Solve for x
    x = 115,923,968.86/12,425.60
  6. Step 6: Final answer
    x = 9,329.45

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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.