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Finding the Fourth Proportional to 12,950.72, 17,864.70 and 8,473.44

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Solution

The fourth proportional to 12,950.72, 17,864.70 and 8,473.44 is: 11,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,950.72 : 17,864.70 = 8,473.44 : x
  2. Step 2: Convert to fraction form
    12,950.72/17,864.70 = 8,473.44/x
  3. Step 3: Cross multiply
    12,950.72x = 17,864.70 × 8,473.44
  4. Step 4: Simplify right side
    12,950.72x = 151,375,546.45
  5. Step 5: Solve for x
    x = 151,375,546.45/12,950.72
  6. Step 6: Final answer
    x = 11,688.58

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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.