Home / 18,171.08-25,067.40-12,124.34

Finding the Fourth Proportional to 18,171.08, 25,067.40 and 12,124.34

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Solution

The fourth proportional to 18,171.08, 25,067.40 and 12,124.34 is: 16,725.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,171.08 : 25,067.40 = 12,124.34 : x
  2. Step 2: Convert to fraction form
    18,171.08/25,067.40 = 12,124.34/x
  3. Step 3: Cross multiply
    18,171.08x = 25,067.40 × 12,124.34
  4. Step 4: Simplify right side
    18,171.08x = 303,925,680.52
  5. Step 5: Solve for x
    x = 303,925,680.52/18,171.08
  6. Step 6: Final answer
    x = 16,725.79

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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.