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Finding the Fourth Proportional to 9,883.68, 13,627.92 and 8,207.04

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Solution

The fourth proportional to 9,883.68, 13,627.92 and 8,207.04 is: 11,316.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,883.68 : 13,627.92 = 8,207.04 : x
  2. Step 2: Convert to fraction form
    9,883.68/13,627.92 = 8,207.04/x
  3. Step 3: Cross multiply
    9,883.68x = 13,627.92 × 8,207.04
  4. Step 4: Simplify right side
    9,883.68x = 111,844,884.56
  5. Step 5: Solve for x
    x = 111,844,884.56/9,883.68
  6. Step 6: Final answer
    x = 11,316.12

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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.