Home / 17,811.96-26,717.84-7,279.76

Finding the Fourth Proportional to 17,811.96, 26,717.84 and 7,279.76

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Solution

The fourth proportional to 17,811.96, 26,717.84 and 7,279.76 is: 10,919.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,811.96 : 26,717.84 = 7,279.76 : x
  2. Step 2: Convert to fraction form
    17,811.96/26,717.84 = 7,279.76/x
  3. Step 3: Cross multiply
    17,811.96x = 26,717.84 × 7,279.76
  4. Step 4: Simplify right side
    17,811.96x = 194,499,462.92
  5. Step 5: Solve for x
    x = 194,499,462.92/17,811.96
  6. Step 6: Final answer
    x = 10,919.60

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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.