Home / 13,285.39-19,940.37-6,716.20

Finding the Fourth Proportional to 13,285.39, 19,940.37 and 6,716.20

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Solution

The fourth proportional to 13,285.39, 19,940.37 and 6,716.20 is: 10,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.39 : 19,940.37 = 6,716.20 : x
  2. Step 2: Convert to fraction form
    13,285.39/19,940.37 = 6,716.20/x
  3. Step 3: Cross multiply
    13,285.39x = 19,940.37 × 6,716.20
  4. Step 4: Simplify right side
    13,285.39x = 133,923,512.99
  5. Step 5: Solve for x
    x = 133,923,512.99/13,285.39
  6. Step 6: Final answer
    x = 10,080.51

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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.