Home / 11,711.39-16,161.47-6,406.03

Finding the Fourth Proportional to 11,711.39, 16,161.47 and 6,406.03

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Solution

The fourth proportional to 11,711.39, 16,161.47 and 6,406.03 is: 8,840.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,711.39 : 16,161.47 = 6,406.03 : x
  2. Step 2: Convert to fraction form
    11,711.39/16,161.47 = 6,406.03/x
  3. Step 3: Cross multiply
    11,711.39x = 16,161.47 × 6,406.03
  4. Step 4: Simplify right side
    11,711.39x = 103,530,780.86
  5. Step 5: Solve for x
    x = 103,530,780.86/11,711.39
  6. Step 6: Final answer
    x = 8,840.18

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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.