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Finding the Fourth Proportional to 8,495.97, 12,726.95 and 6,638.37

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Solution

The fourth proportional to 8,495.97, 12,726.95 and 6,638.37 is: 9,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.97 : 12,726.95 = 6,638.37 : x
  2. Step 2: Convert to fraction form
    8,495.97/12,726.95 = 6,638.37/x
  3. Step 3: Cross multiply
    8,495.97x = 12,726.95 × 6,638.37
  4. Step 4: Simplify right side
    8,495.97x = 84,486,169.88
  5. Step 5: Solve for x
    x = 84,486,169.88/8,495.97
  6. Step 6: Final answer
    x = 9,944.26

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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.