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Finding the Fourth Proportional to 8,447.42, 12,670.43 and 2,604.08

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Solution

The fourth proportional to 8,447.42, 12,670.43 and 2,604.08 is: 3,905.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.42 : 12,670.43 = 2,604.08 : x
  2. Step 2: Convert to fraction form
    8,447.42/12,670.43 = 2,604.08/x
  3. Step 3: Cross multiply
    8,447.42x = 12,670.43 × 2,604.08
  4. Step 4: Simplify right side
    8,447.42x = 32,994,832.01
  5. Step 5: Solve for x
    x = 32,994,832.01/8,447.42
  6. Step 6: Final answer
    x = 3,905.91

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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.