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Finding the Fourth Proportional to 8,649.03, 11,933.46 and 5,290.62

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Solution

The fourth proportional to 8,649.03, 11,933.46 and 5,290.62 is: 7,299.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.03 : 11,933.46 = 5,290.62 : x
  2. Step 2: Convert to fraction form
    8,649.03/11,933.46 = 5,290.62/x
  3. Step 3: Cross multiply
    8,649.03x = 11,933.46 × 5,290.62
  4. Step 4: Simplify right side
    8,649.03x = 63,135,402.15
  5. Step 5: Solve for x
    x = 63,135,402.15/8,649.03
  6. Step 6: Final answer
    x = 7,299.71

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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.