Home / 13,122.27-19,691.37-5,330.88

Finding the Fourth Proportional to 13,122.27, 19,691.37 and 5,330.88

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Solution

The fourth proportional to 13,122.27, 19,691.37 and 5,330.88 is: 7,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122.27 : 19,691.37 = 5,330.88 : x
  2. Step 2: Convert to fraction form
    13,122.27/19,691.37 = 5,330.88/x
  3. Step 3: Cross multiply
    13,122.27x = 19,691.37 × 5,330.88
  4. Step 4: Simplify right side
    13,122.27x = 104,972,303.85
  5. Step 5: Solve for x
    x = 104,972,303.85/13,122.27
  6. Step 6: Final answer
    x = 7,999.55

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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.