Home / 13,129.13-19,657.16-11,237.37

Finding the Fourth Proportional to 13,129.13, 19,657.16 and 11,237.37

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Solution

The fourth proportional to 13,129.13, 19,657.16 and 11,237.37 is: 16,824.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.13 : 19,657.16 = 11,237.37 : x
  2. Step 2: Convert to fraction form
    13,129.13/19,657.16 = 11,237.37/x
  3. Step 3: Cross multiply
    13,129.13x = 19,657.16 × 11,237.37
  4. Step 4: Simplify right side
    13,129.13x = 220,894,723.88
  5. Step 5: Solve for x
    x = 220,894,723.88/13,129.13
  6. Step 6: Final answer
    x = 16,824.79

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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.