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Finding the Fourth Proportional to 8,841.69, 13,270.41 and 6,643.71

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Solution

The fourth proportional to 8,841.69, 13,270.41 and 6,643.71 is: 9,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,841.69 : 13,270.41 = 6,643.71 : x
  2. Step 2: Convert to fraction form
    8,841.69/13,270.41 = 6,643.71/x
  3. Step 3: Cross multiply
    8,841.69x = 13,270.41 × 6,643.71
  4. Step 4: Simplify right side
    8,841.69x = 88,164,755.62
  5. Step 5: Solve for x
    x = 88,164,755.62/8,841.69
  6. Step 6: Final answer
    x = 9,971.48

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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.