Home / 11,689.68-16,131.05-6,383.42

Finding the Fourth Proportional to 11,689.68, 16,131.05 and 6,383.42

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Solution

The fourth proportional to 11,689.68, 16,131.05 and 6,383.42 is: 8,808.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,689.68 : 16,131.05 = 6,383.42 : x
  2. Step 2: Convert to fraction form
    11,689.68/16,131.05 = 6,383.42/x
  3. Step 3: Cross multiply
    11,689.68x = 16,131.05 × 6,383.42
  4. Step 4: Simplify right side
    11,689.68x = 102,971,267.19
  5. Step 5: Solve for x
    x = 102,971,267.19/11,689.68
  6. Step 6: Final answer
    x = 8,808.73

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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.