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Finding the Fourth Proportional to 15,067.65, 20,794.40 and 8,353.90

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Solution

The fourth proportional to 15,067.65, 20,794.40 and 8,353.90 is: 11,528.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,067.65 : 20,794.40 = 8,353.90 : x
  2. Step 2: Convert to fraction form
    15,067.65/20,794.40 = 8,353.90/x
  3. Step 3: Cross multiply
    15,067.65x = 20,794.40 × 8,353.90
  4. Step 4: Simplify right side
    15,067.65x = 173,714,338.16
  5. Step 5: Solve for x
    x = 173,714,338.16/15,067.65
  6. Step 6: Final answer
    x = 11,528.96

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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.