Home / 11,961.75-16,505.58-6,655.84

Finding the Fourth Proportional to 11,961.75, 16,505.58 and 6,655.84

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Solution

The fourth proportional to 11,961.75, 16,505.58 and 6,655.84 is: 9,184.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.75 : 16,505.58 = 6,655.84 : x
  2. Step 2: Convert to fraction form
    11,961.75/16,505.58 = 6,655.84/x
  3. Step 3: Cross multiply
    11,961.75x = 16,505.58 × 6,655.84
  4. Step 4: Simplify right side
    11,961.75x = 109,858,499.59
  5. Step 5: Solve for x
    x = 109,858,499.59/11,961.75
  6. Step 6: Final answer
    x = 9,184.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.