Home / 15,197.82-20,982.62-10,425.76

Finding the Fourth Proportional to 15,197.82, 20,982.62 and 10,425.76

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Solution

The fourth proportional to 15,197.82, 20,982.62 and 10,425.76 is: 14,394.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197.82 : 20,982.62 = 10,425.76 : x
  2. Step 2: Convert to fraction form
    15,197.82/20,982.62 = 10,425.76/x
  3. Step 3: Cross multiply
    15,197.82x = 20,982.62 × 10,425.76
  4. Step 4: Simplify right side
    15,197.82x = 218,759,603.25
  5. Step 5: Solve for x
    x = 218,759,603.25/15,197.82
  6. Step 6: Final answer
    x = 14,394.15

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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.