Home / 11,990.55-16,548.46-6,887.66

Finding the Fourth Proportional to 11,990.55, 16,548.46 and 6,887.66

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Solution

The fourth proportional to 11,990.55, 16,548.46 and 6,887.66 is: 9,505.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,990.55 : 16,548.46 = 6,887.66 : x
  2. Step 2: Convert to fraction form
    11,990.55/16,548.46 = 6,887.66/x
  3. Step 3: Cross multiply
    11,990.55x = 16,548.46 × 6,887.66
  4. Step 4: Simplify right side
    11,990.55x = 113,980,131.57
  5. Step 5: Solve for x
    x = 113,980,131.57/11,990.55
  6. Step 6: Final answer
    x = 9,505.83

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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.