Home / 13,843.44-19,103.58-12,728.88

Finding the Fourth Proportional to 13,843.44, 19,103.58 and 12,728.88

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Solution

The fourth proportional to 13,843.44, 19,103.58 and 12,728.88 is: 17,565.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,843.44 : 19,103.58 = 12,728.88 : x
  2. Step 2: Convert to fraction form
    13,843.44/19,103.58 = 12,728.88/x
  3. Step 3: Cross multiply
    13,843.44x = 19,103.58 × 12,728.88
  4. Step 4: Simplify right side
    13,843.44x = 243,167,177.39
  5. Step 5: Solve for x
    x = 243,167,177.39/13,843.44
  6. Step 6: Final answer
    x = 17,565.52

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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.