Home / 11,321.04-16,981.20-3,924.80

Finding the Fourth Proportional to 11,321.04, 16,981.20 and 3,924.80

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Solution

The fourth proportional to 11,321.04, 16,981.20 and 3,924.80 is: 5,887.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,321.04 : 16,981.20 = 3,924.80 : x
  2. Step 2: Convert to fraction form
    11,321.04/16,981.20 = 3,924.80/x
  3. Step 3: Cross multiply
    11,321.04x = 16,981.20 × 3,924.80
  4. Step 4: Simplify right side
    11,321.04x = 66,647,813.76
  5. Step 5: Solve for x
    x = 66,647,813.76/11,321.04
  6. Step 6: Final answer
    x = 5,887.08

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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.