Home / 12,493.20-17,226.63-8,516.64

Finding the Fourth Proportional to 12,493.20, 17,226.63 and 8,516.64

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Solution

The fourth proportional to 12,493.20, 17,226.63 and 8,516.64 is: 11,743.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.20 : 17,226.63 = 8,516.64 : x
  2. Step 2: Convert to fraction form
    12,493.20/17,226.63 = 8,516.64/x
  3. Step 3: Cross multiply
    12,493.20x = 17,226.63 × 8,516.64
  4. Step 4: Simplify right side
    12,493.20x = 146,713,006.12
  5. Step 5: Solve for x
    x = 146,713,006.12/12,493.20
  6. Step 6: Final answer
    x = 11,743.43

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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.