Home / 11,713.86-16,173.14-8,689.77

Finding the Fourth Proportional to 11,713.86, 16,173.14 and 8,689.77

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Solution

The fourth proportional to 11,713.86, 16,173.14 and 8,689.77 is: 11,997.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,713.86 : 16,173.14 = 8,689.77 : x
  2. Step 2: Convert to fraction form
    11,713.86/16,173.14 = 8,689.77/x
  3. Step 3: Cross multiply
    11,713.86x = 16,173.14 × 8,689.77
  4. Step 4: Simplify right side
    11,713.86x = 140,540,823.33
  5. Step 5: Solve for x
    x = 140,540,823.33/11,713.86
  6. Step 6: Final answer
    x = 11,997.82

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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.