Home / 12,882.89-17,645.18-12,126.35

Finding the Fourth Proportional to 12,882.89, 17,645.18 and 12,126.35

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Solution

The fourth proportional to 12,882.89, 17,645.18 and 12,126.35 is: 16,608.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,882.89 : 17,645.18 = 12,126.35 : x
  2. Step 2: Convert to fraction form
    12,882.89/17,645.18 = 12,126.35/x
  3. Step 3: Cross multiply
    12,882.89x = 17,645.18 × 12,126.35
  4. Step 4: Simplify right side
    12,882.89x = 213,971,479.64
  5. Step 5: Solve for x
    x = 213,971,479.64/12,882.89
  6. Step 6: Final answer
    x = 16,608.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.