Home / 11,766.20-16,237.69-6,661.31

Finding the Fourth Proportional to 11,766.20, 16,237.69 and 6,661.31

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Solution

The fourth proportional to 11,766.20, 16,237.69 and 6,661.31 is: 9,192.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,766.20 : 16,237.69 = 6,661.31 : x
  2. Step 2: Convert to fraction form
    11,766.20/16,237.69 = 6,661.31/x
  3. Step 3: Cross multiply
    11,766.20x = 16,237.69 × 6,661.31
  4. Step 4: Simplify right side
    11,766.20x = 108,164,188.93
  5. Step 5: Solve for x
    x = 108,164,188.93/11,766.20
  6. Step 6: Final answer
    x = 9,192.79

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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.