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Finding the Fourth Proportional to 8,671.89, 13,007.82 and 6,700.39

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Solution

The fourth proportional to 8,671.89, 13,007.82 and 6,700.39 is: 10,050.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,671.89 : 13,007.82 = 6,700.39 : x
  2. Step 2: Convert to fraction form
    8,671.89/13,007.82 = 6,700.39/x
  3. Step 3: Cross multiply
    8,671.89x = 13,007.82 × 6,700.39
  4. Step 4: Simplify right side
    8,671.89x = 87,157,459.66
  5. Step 5: Solve for x
    x = 87,157,459.66/8,671.89
  6. Step 6: Final answer
    x = 10,050.57

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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.