Home / 10,512.74-15,765.65-3,847.72

Finding the Fourth Proportional to 10,512.74, 15,765.65 and 3,847.72

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Solution

The fourth proportional to 10,512.74, 15,765.65 and 3,847.72 is: 5,770.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.74 : 15,765.65 = 3,847.72 : x
  2. Step 2: Convert to fraction form
    10,512.74/15,765.65 = 3,847.72/x
  3. Step 3: Cross multiply
    10,512.74x = 15,765.65 × 3,847.72
  4. Step 4: Simplify right side
    10,512.74x = 60,661,806.82
  5. Step 5: Solve for x
    x = 60,661,806.82/10,512.74
  6. Step 6: Final answer
    x = 5,770.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.