Home / 8,739.25-13,101-3,188.72

Finding the Fourth Proportional to 8,739.25, 13,101 and 3,188.72

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Solution

The fourth proportional to 8,739.25, 13,101 and 3,188.72 is: 4,780.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.25 : 13,101 = 3,188.72 : x
  2. Step 2: Convert to fraction form
    8,739.25/13,101 = 3,188.72/x
  3. Step 3: Cross multiply
    8,739.25x = 13,101 × 3,188.72
  4. Step 4: Simplify right side
    8,739.25x = 41,775,420.72
  5. Step 5: Solve for x
    x = 41,775,420.72/8,739.25
  6. Step 6: Final answer
    x = 4,780.21

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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.