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Finding the Fourth Proportional to 8,806.22, 13,205.13 and 5,109.58

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Solution

The fourth proportional to 8,806.22, 13,205.13 and 5,109.58 is: 7,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.22 : 13,205.13 = 5,109.58 : x
  2. Step 2: Convert to fraction form
    8,806.22/13,205.13 = 5,109.58/x
  3. Step 3: Cross multiply
    8,806.22x = 13,205.13 × 5,109.58
  4. Step 4: Simplify right side
    8,806.22x = 67,472,665.49
  5. Step 5: Solve for x
    x = 67,472,665.49/8,806.22
  6. Step 6: Final answer
    x = 7,661.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.