Home / 8,234.81-12,353.40-2,686.78

Finding the Fourth Proportional to 8,234.81, 12,353.40 and 2,686.78

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Solution

The fourth proportional to 8,234.81, 12,353.40 and 2,686.78 is: 4,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,234.81 : 12,353.40 = 2,686.78 : x
  2. Step 2: Convert to fraction form
    8,234.81/12,353.40 = 2,686.78/x
  3. Step 3: Cross multiply
    8,234.81x = 12,353.40 × 2,686.78
  4. Step 4: Simplify right side
    8,234.81x = 33,190,868.05
  5. Step 5: Solve for x
    x = 33,190,868.05/8,234.81
  6. Step 6: Final answer
    x = 4,030.56

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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.