Home / 11,811.02-16,299.21-6,505.85

Finding the Fourth Proportional to 11,811.02, 16,299.21 and 6,505.85

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Solution

The fourth proportional to 11,811.02, 16,299.21 and 6,505.85 is: 8,978.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,811.02 : 16,299.21 = 6,505.85 : x
  2. Step 2: Convert to fraction form
    11,811.02/16,299.21 = 6,505.85/x
  3. Step 3: Cross multiply
    11,811.02x = 16,299.21 × 6,505.85
  4. Step 4: Simplify right side
    11,811.02x = 106,040,133.88
  5. Step 5: Solve for x
    x = 106,040,133.88/11,811.02
  6. Step 6: Final answer
    x = 8,978.07

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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.