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Finding the Fourth Proportional to 8,448.63, 11,662.38 and 7,562.90

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Solution

The fourth proportional to 8,448.63, 11,662.38 and 7,562.90 is: 10,439.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,448.63 : 11,662.38 = 7,562.90 : x
  2. Step 2: Convert to fraction form
    8,448.63/11,662.38 = 7,562.90/x
  3. Step 3: Cross multiply
    8,448.63x = 11,662.38 × 7,562.90
  4. Step 4: Simplify right side
    8,448.63x = 88,201,355.39
  5. Step 5: Solve for x
    x = 88,201,355.39/8,448.63
  6. Step 6: Final answer
    x = 10,439.72

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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.