Home / 12,452.92-17,161.41-8,909.98

Finding the Fourth Proportional to 12,452.92, 17,161.41 and 8,909.98

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Solution

The fourth proportional to 12,452.92, 17,161.41 and 8,909.98 is: 12,278.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.92 : 17,161.41 = 8,909.98 : x
  2. Step 2: Convert to fraction form
    12,452.92/17,161.41 = 8,909.98/x
  3. Step 3: Cross multiply
    12,452.92x = 17,161.41 × 8,909.98
  4. Step 4: Simplify right side
    12,452.92x = 152,907,819.87
  5. Step 5: Solve for x
    x = 152,907,819.87/12,452.92
  6. Step 6: Final answer
    x = 12,278.87

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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.