Home / 10,286.72-15,464.24-8,451.44

Finding the Fourth Proportional to 10,286.72, 15,464.24 and 8,451.44

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Solution

The fourth proportional to 10,286.72, 15,464.24 and 8,451.44 is: 12,705.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,286.72 : 15,464.24 = 8,451.44 : x
  2. Step 2: Convert to fraction form
    10,286.72/15,464.24 = 8,451.44/x
  3. Step 3: Cross multiply
    10,286.72x = 15,464.24 × 8,451.44
  4. Step 4: Simplify right side
    10,286.72x = 130,695,096.51
  5. Step 5: Solve for x
    x = 130,695,096.51/10,286.72
  6. Step 6: Final answer
    x = 12,705.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.