Home / 14,067.60-19,415.68-8,102.72

Finding the Fourth Proportional to 14,067.60, 19,415.68 and 8,102.72

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Solution

The fourth proportional to 14,067.60, 19,415.68 and 8,102.72 is: 11,183.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,067.60 : 19,415.68 = 8,102.72 : x
  2. Step 2: Convert to fraction form
    14,067.60/19,415.68 = 8,102.72/x
  3. Step 3: Cross multiply
    14,067.60x = 19,415.68 × 8,102.72
  4. Step 4: Simplify right side
    14,067.60x = 157,319,818.65
  5. Step 5: Solve for x
    x = 157,319,818.65/14,067.60
  6. Step 6: Final answer
    x = 11,183.13

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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.