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Finding the Fourth Proportional to 8,528.68, 12,796.73 and 2,986.01

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Solution

The fourth proportional to 8,528.68, 12,796.73 and 2,986.01 is: 4,480.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,528.68 : 12,796.73 = 2,986.01 : x
  2. Step 2: Convert to fraction form
    8,528.68/12,796.73 = 2,986.01/x
  3. Step 3: Cross multiply
    8,528.68x = 12,796.73 × 2,986.01
  4. Step 4: Simplify right side
    8,528.68x = 38,211,163.75
  5. Step 5: Solve for x
    x = 38,211,163.75/8,528.68
  6. Step 6: Final answer
    x = 4,480.31

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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.