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Finding the Fourth Proportional to 8,629.22, 11,910.29 and 6,108.71

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Solution

The fourth proportional to 8,629.22, 11,910.29 and 6,108.71 is: 8,431.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.22 : 11,910.29 = 6,108.71 : x
  2. Step 2: Convert to fraction form
    8,629.22/11,910.29 = 6,108.71/x
  3. Step 3: Cross multiply
    8,629.22x = 11,910.29 × 6,108.71
  4. Step 4: Simplify right side
    8,629.22x = 72,756,417.53
  5. Step 5: Solve for x
    x = 72,756,417.53/8,629.22
  6. Step 6: Final answer
    x = 8,431.41

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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.