Home / 11,725.16-16,181.12-6,419.96

Finding the Fourth Proportional to 11,725.16, 16,181.12 and 6,419.96

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Solution

The fourth proportional to 11,725.16, 16,181.12 and 6,419.96 is: 8,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,725.16 : 16,181.12 = 6,419.96 : x
  2. Step 2: Convert to fraction form
    11,725.16/16,181.12 = 6,419.96/x
  3. Step 3: Cross multiply
    11,725.16x = 16,181.12 × 6,419.96
  4. Step 4: Simplify right side
    11,725.16x = 103,882,102.87
  5. Step 5: Solve for x
    x = 103,882,102.87/11,725.16
  6. Step 6: Final answer
    x = 8,859.76

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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.