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Finding the Fourth Proportional to 7,671.13, 11,503.04 and 2,672.89

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Solution

The fourth proportional to 7,671.13, 11,503.04 and 2,672.89 is: 4,008.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.13 : 11,503.04 = 2,672.89 : x
  2. Step 2: Convert to fraction form
    7,671.13/11,503.04 = 2,672.89/x
  3. Step 3: Cross multiply
    7,671.13x = 11,503.04 × 2,672.89
  4. Step 4: Simplify right side
    7,671.13x = 30,746,360.59
  5. Step 5: Solve for x
    x = 30,746,360.59/7,671.13
  6. Step 6: Final answer
    x = 4,008.06

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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.