Home / 15,197.44-20,982.10-10,425.38

Finding the Fourth Proportional to 15,197.44, 20,982.10 and 10,425.38

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Solution

The fourth proportional to 15,197.44, 20,982.10 and 10,425.38 is: 14,393.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.44 : 20,982.10 = 10,425.38 : x
  2. Step 2: Convert to fraction form
    15,197.44/20,982.10 = 10,425.38/x
  3. Step 3: Cross multiply
    15,197.44x = 20,982.10 × 10,425.38
  4. Step 4: Simplify right side
    15,197.44x = 218,746,365.70
  5. Step 5: Solve for x
    x = 218,746,365.70/15,197.44
  6. Step 6: Final answer
    x = 14,393.63

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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.