Home / 8,416.99-12,625.50-3,151.79

Finding the Fourth Proportional to 8,416.99, 12,625.50 and 3,151.79

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Solution

The fourth proportional to 8,416.99, 12,625.50 and 3,151.79 is: 4,727.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,416.99 : 12,625.50 = 3,151.79 : x
  2. Step 2: Convert to fraction form
    8,416.99/12,625.50 = 3,151.79/x
  3. Step 3: Cross multiply
    8,416.99x = 12,625.50 × 3,151.79
  4. Step 4: Simplify right side
    8,416.99x = 39,792,920.68
  5. Step 5: Solve for x
    x = 39,792,920.68/8,416.99
  6. Step 6: Final answer
    x = 4,727.69

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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.