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Finding the Fourth Proportional to 8,463.88, 12,697.03 and 2,620.94

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Solution

The fourth proportional to 8,463.88, 12,697.03 and 2,620.94 is: 3,931.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,463.88 : 12,697.03 = 2,620.94 : x
  2. Step 2: Convert to fraction form
    8,463.88/12,697.03 = 2,620.94/x
  3. Step 3: Cross multiply
    8,463.88x = 12,697.03 × 2,620.94
  4. Step 4: Simplify right side
    8,463.88x = 33,278,153.81
  5. Step 5: Solve for x
    x = 33,278,153.81/8,463.88
  6. Step 6: Final answer
    x = 3,931.78

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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.