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Finding the Fourth Proportional to 12,793.41, 17,649.90 and 8,011.38

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Solution

The fourth proportional to 12,793.41, 17,649.90 and 8,011.38 is: 11,052.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.41 : 17,649.90 = 8,011.38 : x
  2. Step 2: Convert to fraction form
    12,793.41/17,649.90 = 8,011.38/x
  3. Step 3: Cross multiply
    12,793.41x = 17,649.90 × 8,011.38
  4. Step 4: Simplify right side
    12,793.41x = 141,400,055.86
  5. Step 5: Solve for x
    x = 141,400,055.86/12,793.41
  6. Step 6: Final answer
    x = 11,052.57

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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.