Home / 12,394.08-17,078.40-11,519.04

Finding the Fourth Proportional to 12,394.08, 17,078.40 and 11,519.04

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Solution

The fourth proportional to 12,394.08, 17,078.40 and 11,519.04 is: 15,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394.08 : 17,078.40 = 11,519.04 : x
  2. Step 2: Convert to fraction form
    12,394.08/17,078.40 = 11,519.04/x
  3. Step 3: Cross multiply
    12,394.08x = 17,078.40 × 11,519.04
  4. Step 4: Simplify right side
    12,394.08x = 196,726,772.74
  5. Step 5: Solve for x
    x = 196,726,772.74/12,394.08
  6. Step 6: Final answer
    x = 15,872.64

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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.