Home / 16,782.45-25,118.91-12,338.94

Finding the Fourth Proportional to 16,782.45, 25,118.91 and 12,338.94

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Solution

The fourth proportional to 16,782.45, 25,118.91 and 12,338.94 is: 18,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,782.45 : 25,118.91 = 12,338.94 : x
  2. Step 2: Convert to fraction form
    16,782.45/25,118.91 = 12,338.94/x
  3. Step 3: Cross multiply
    16,782.45x = 25,118.91 × 12,338.94
  4. Step 4: Simplify right side
    16,782.45x = 309,940,723.36
  5. Step 5: Solve for x
    x = 309,940,723.36/16,782.45
  6. Step 6: Final answer
    x = 18,468.15

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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.