Home / 13,795.26-20,670.18-7,956.78

Finding the Fourth Proportional to 13,795.26, 20,670.18 and 7,956.78

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Solution

The fourth proportional to 13,795.26, 20,670.18 and 7,956.78 is: 11,922.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.26 : 20,670.18 = 7,956.78 : x
  2. Step 2: Convert to fraction form
    13,795.26/20,670.18 = 7,956.78/x
  3. Step 3: Cross multiply
    13,795.26x = 20,670.18 × 7,956.78
  4. Step 4: Simplify right side
    13,795.26x = 164,468,074.82
  5. Step 5: Solve for x
    x = 164,468,074.82/13,795.26
  6. Step 6: Final answer
    x = 11,922.07

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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.