Home / 11,690.27-16,132.48-6,385.09

Finding the Fourth Proportional to 11,690.27, 16,132.48 and 6,385.09

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Solution

The fourth proportional to 11,690.27, 16,132.48 and 6,385.09 is: 8,811.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,690.27 : 16,132.48 = 6,385.09 : x
  2. Step 2: Convert to fraction form
    11,690.27/16,132.48 = 6,385.09/x
  3. Step 3: Cross multiply
    11,690.27x = 16,132.48 × 6,385.09
  4. Step 4: Simplify right side
    11,690.27x = 103,007,336.72
  5. Step 5: Solve for x
    x = 103,007,336.72/11,690.27
  6. Step 6: Final answer
    x = 8,811.37

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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.