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Finding the Fourth Proportional to 8,635.73, 11,903.90 and 7,224.10

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Solution

The fourth proportional to 8,635.73, 11,903.90 and 7,224.10 is: 9,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,635.73 : 11,903.90 = 7,224.10 : x
  2. Step 2: Convert to fraction form
    8,635.73/11,903.90 = 7,224.10/x
  3. Step 3: Cross multiply
    8,635.73x = 11,903.90 × 7,224.10
  4. Step 4: Simplify right side
    8,635.73x = 85,994,898.11
  5. Step 5: Solve for x
    x = 85,994,898.11/8,635.73
  6. Step 6: Final answer
    x = 9,958.04

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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.