Home / 12,606.39-17,397.21-6,940.83

Finding the Fourth Proportional to 12,606.39, 17,397.21 and 6,940.83

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Solution

The fourth proportional to 12,606.39, 17,397.21 and 6,940.83 is: 9,578.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,606.39 : 17,397.21 = 6,940.83 : x
  2. Step 2: Convert to fraction form
    12,606.39/17,397.21 = 6,940.83/x
  3. Step 3: Cross multiply
    12,606.39x = 17,397.21 × 6,940.83
  4. Step 4: Simplify right side
    12,606.39x = 120,751,077.08
  5. Step 5: Solve for x
    x = 120,751,077.08/12,606.39
  6. Step 6: Final answer
    x = 9,578.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.