Home / 14,167.20-19,550.64-8,198.88

Finding the Fourth Proportional to 14,167.20, 19,550.64 and 8,198.88

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Solution

The fourth proportional to 14,167.20, 19,550.64 and 8,198.88 is: 11,314.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,167.20 : 19,550.64 = 8,198.88 : x
  2. Step 2: Convert to fraction form
    14,167.20/19,550.64 = 8,198.88/x
  3. Step 3: Cross multiply
    14,167.20x = 19,550.64 × 8,198.88
  4. Step 4: Simplify right side
    14,167.20x = 160,293,351.28
  5. Step 5: Solve for x
    x = 160,293,351.28/14,167.20
  6. Step 6: Final answer
    x = 11,314.40

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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.