Home / 8,274.96-12,420.66-3,895.50

Finding the Fourth Proportional to 8,274.96, 12,420.66 and 3,895.50

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Solution

The fourth proportional to 8,274.96, 12,420.66 and 3,895.50 is: 5,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,274.96 : 12,420.66 = 3,895.50 : x
  2. Step 2: Convert to fraction form
    8,274.96/12,420.66 = 3,895.50/x
  3. Step 3: Cross multiply
    8,274.96x = 12,420.66 × 3,895.50
  4. Step 4: Simplify right side
    8,274.96x = 48,384,681.03
  5. Step 5: Solve for x
    x = 48,384,681.03/8,274.96
  6. Step 6: Final answer
    x = 5,847.12

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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.