Home / 12,940.64-19,397.11-6,694.36

Finding the Fourth Proportional to 12,940.64, 19,397.11 and 6,694.36

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Solution

The fourth proportional to 12,940.64, 19,397.11 and 6,694.36 is: 10,034.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,940.64 : 19,397.11 = 6,694.36 : x
  2. Step 2: Convert to fraction form
    12,940.64/19,397.11 = 6,694.36/x
  3. Step 3: Cross multiply
    12,940.64x = 19,397.11 × 6,694.36
  4. Step 4: Simplify right side
    12,940.64x = 129,851,237.30
  5. Step 5: Solve for x
    x = 129,851,237.30/12,940.64
  6. Step 6: Final answer
    x = 10,034.38

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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.