Home / 11,188.21-16,782.54-8,956.69

Finding the Fourth Proportional to 11,188.21, 16,782.54 and 8,956.69

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Solution

The fourth proportional to 11,188.21, 16,782.54 and 8,956.69 is: 13,435.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,188.21 : 16,782.54 = 8,956.69 : x
  2. Step 2: Convert to fraction form
    11,188.21/16,782.54 = 8,956.69/x
  3. Step 3: Cross multiply
    11,188.21x = 16,782.54 × 8,956.69
  4. Step 4: Simplify right side
    11,188.21x = 150,315,924.28
  5. Step 5: Solve for x
    x = 150,315,924.28/11,188.21
  6. Step 6: Final answer
    x = 13,435.21

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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.