Home / 14,067.89-19,422.11-8,769.88

Finding the Fourth Proportional to 14,067.89, 19,422.11 and 8,769.88

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Solution

The fourth proportional to 14,067.89, 19,422.11 and 8,769.88 is: 12,107.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.89 : 19,422.11 = 8,769.88 : x
  2. Step 2: Convert to fraction form
    14,067.89/19,422.11 = 8,769.88/x
  3. Step 3: Cross multiply
    14,067.89x = 19,422.11 × 8,769.88
  4. Step 4: Simplify right side
    14,067.89x = 170,329,574.05
  5. Step 5: Solve for x
    x = 170,329,574.05/14,067.89
  6. Step 6: Final answer
    x = 12,107.68

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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.