Home / 13,015.34-19,530.79-11,956.61

Finding the Fourth Proportional to 13,015.34, 19,530.79 and 11,956.61

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Solution

The fourth proportional to 13,015.34, 19,530.79 and 11,956.61 is: 17,942.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.34 : 19,530.79 = 11,956.61 : x
  2. Step 2: Convert to fraction form
    13,015.34/19,530.79 = 11,956.61/x
  3. Step 3: Cross multiply
    13,015.34x = 19,530.79 × 11,956.61
  4. Step 4: Simplify right side
    13,015.34x = 233,522,039.02
  5. Step 5: Solve for x
    x = 233,522,039.02/13,015.34
  6. Step 6: Final answer
    x = 17,942.06

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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.