Home / 8,086.24-12,129.60-2,539.36

Finding the Fourth Proportional to 8,086.24, 12,129.60 and 2,539.36

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Solution

The fourth proportional to 8,086.24, 12,129.60 and 2,539.36 is: 3,809.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,086.24 : 12,129.60 = 2,539.36 : x
  2. Step 2: Convert to fraction form
    8,086.24/12,129.60 = 2,539.36/x
  3. Step 3: Cross multiply
    8,086.24x = 12,129.60 × 2,539.36
  4. Step 4: Simplify right side
    8,086.24x = 30,801,421.06
  5. Step 5: Solve for x
    x = 30,801,421.06/8,086.24
  6. Step 6: Final answer
    x = 3,809.12

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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.