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Finding the Fourth Proportional to 17,081.06, 25,615.43 and 7,221.11

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Solution

The fourth proportional to 17,081.06, 25,615.43 and 7,221.11 is: 10,829.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,081.06 : 25,615.43 = 7,221.11 : x
  2. Step 2: Convert to fraction form
    17,081.06/25,615.43 = 7,221.11/x
  3. Step 3: Cross multiply
    17,081.06x = 25,615.43 × 7,221.11
  4. Step 4: Simplify right side
    17,081.06x = 184,971,673.54
  5. Step 5: Solve for x
    x = 184,971,673.54/17,081.06
  6. Step 6: Final answer
    x = 10,829.05

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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.