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Finding the Fourth Proportional to 8,671.84, 13,008.30 and 3,477.04

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Solution

The fourth proportional to 8,671.84, 13,008.30 and 3,477.04 is: 5,215.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.84 : 13,008.30 = 3,477.04 : x
  2. Step 2: Convert to fraction form
    8,671.84/13,008.30 = 3,477.04/x
  3. Step 3: Cross multiply
    8,671.84x = 13,008.30 × 3,477.04
  4. Step 4: Simplify right side
    8,671.84x = 45,230,379.43
  5. Step 5: Solve for x
    x = 45,230,379.43/8,671.84
  6. Step 6: Final answer
    x = 5,215.78

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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.