Home / 13,129.52-19,659.04-8,189.33

Finding the Fourth Proportional to 13,129.52, 19,659.04 and 8,189.33

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Solution

The fourth proportional to 13,129.52, 19,659.04 and 8,189.33 is: 12,262.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.52 : 19,659.04 = 8,189.33 : x
  2. Step 2: Convert to fraction form
    13,129.52/19,659.04 = 8,189.33/x
  3. Step 3: Cross multiply
    13,129.52x = 19,659.04 × 8,189.33
  4. Step 4: Simplify right side
    13,129.52x = 160,994,247.27
  5. Step 5: Solve for x
    x = 160,994,247.27/13,129.52
  6. Step 6: Final answer
    x = 12,262.01

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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.