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Finding the Fourth Proportional to 11,771.03, 17,638.86 and 10,659.71

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Solution

The fourth proportional to 11,771.03, 17,638.86 and 10,659.71 is: 15,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,771.03 : 17,638.86 = 10,659.71 : x
  2. Step 2: Convert to fraction form
    11,771.03/17,638.86 = 10,659.71/x
  3. Step 3: Cross multiply
    11,771.03x = 17,638.86 × 10,659.71
  4. Step 4: Simplify right side
    11,771.03x = 188,025,132.33
  5. Step 5: Solve for x
    x = 188,025,132.33/11,771.03
  6. Step 6: Final answer
    x = 15,973.55

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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.