Home / 11,201.88-16,788.96-9,811.92

Finding the Fourth Proportional to 11,201.88, 16,788.96 and 9,811.92

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Solution

The fourth proportional to 11,201.88, 16,788.96 and 9,811.92 is: 14,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,201.88 : 16,788.96 = 9,811.92 : x
  2. Step 2: Convert to fraction form
    11,201.88/16,788.96 = 9,811.92/x
  3. Step 3: Cross multiply
    11,201.88x = 16,788.96 × 9,811.92
  4. Step 4: Simplify right side
    11,201.88x = 164,731,932.40
  5. Step 5: Solve for x
    x = 164,731,932.40/11,201.88
  6. Step 6: Final answer
    x = 14,705.74

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1.5x scale

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.