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Finding the Fourth Proportional to 9,893.13, 13,659.20 and 6,310.09

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Solution

The fourth proportional to 9,893.13, 13,659.20 and 6,310.09 is: 8,712.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,893.13 : 13,659.20 = 6,310.09 : x
  2. Step 2: Convert to fraction form
    9,893.13/13,659.20 = 6,310.09/x
  3. Step 3: Cross multiply
    9,893.13x = 13,659.20 × 6,310.09
  4. Step 4: Simplify right side
    9,893.13x = 86,190,781.33
  5. Step 5: Solve for x
    x = 86,190,781.33/9,893.13
  6. Step 6: Final answer
    x = 8,712.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.