Home / 12,910.92-19,366.38-4,151.99

Finding the Fourth Proportional to 12,910.92, 19,366.38 and 4,151.99

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Solution

The fourth proportional to 12,910.92, 19,366.38 and 4,151.99 is: 6,227.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.92 : 19,366.38 = 4,151.99 : x
  2. Step 2: Convert to fraction form
    12,910.92/19,366.38 = 4,151.99/x
  3. Step 3: Cross multiply
    12,910.92x = 19,366.38 × 4,151.99
  4. Step 4: Simplify right side
    12,910.92x = 80,408,919.26
  5. Step 5: Solve for x
    x = 80,408,919.26/12,910.92
  6. Step 6: Final answer
    x = 6,227.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.