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Finding the Fourth Proportional to 8,559.58, 12,840.72 and 3,629.26

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Solution

The fourth proportional to 8,559.58, 12,840.72 and 3,629.26 is: 5,444.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.58 : 12,840.72 = 3,629.26 : x
  2. Step 2: Convert to fraction form
    8,559.58/12,840.72 = 3,629.26/x
  3. Step 3: Cross multiply
    8,559.58x = 12,840.72 × 3,629.26
  4. Step 4: Simplify right side
    8,559.58x = 46,602,311.47
  5. Step 5: Solve for x
    x = 46,602,311.47/8,559.58
  6. Step 6: Final answer
    x = 5,444.46

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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.