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Finding the Fourth Proportional to 8,636.41, 12,947.11 and 4,474.22

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Solution

The fourth proportional to 8,636.41, 12,947.11 and 4,474.22 is: 6,707.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,636.41 : 12,947.11 = 4,474.22 : x
  2. Step 2: Convert to fraction form
    8,636.41/12,947.11 = 4,474.22/x
  3. Step 3: Cross multiply
    8,636.41x = 12,947.11 × 4,474.22
  4. Step 4: Simplify right side
    8,636.41x = 57,928,218.50
  5. Step 5: Solve for x
    x = 57,928,218.50/8,636.41
  6. Step 6: Final answer
    x = 6,707.44

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Double scale
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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.