Home / 11,961.50-16,505.24-6,655.59

Finding the Fourth Proportional to 11,961.50, 16,505.24 and 6,655.59

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Solution

The fourth proportional to 11,961.50, 16,505.24 and 6,655.59 is: 9,183.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.50 : 16,505.24 = 6,655.59 : x
  2. Step 2: Convert to fraction form
    11,961.50/16,505.24 = 6,655.59/x
  3. Step 3: Cross multiply
    11,961.50x = 16,505.24 × 6,655.59
  4. Step 4: Simplify right side
    11,961.50x = 109,852,077.01
  5. Step 5: Solve for x
    x = 109,852,077.01/11,961.50
  6. Step 6: Final answer
    x = 9,183.81

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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.