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Finding the Fourth Proportional to 11,003.92, 15,170.22 and 10,659.28

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Solution

The fourth proportional to 11,003.92, 15,170.22 and 10,659.28 is: 14,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.92 : 15,170.22 = 10,659.28 : x
  2. Step 2: Convert to fraction form
    11,003.92/15,170.22 = 10,659.28/x
  3. Step 3: Cross multiply
    11,003.92x = 15,170.22 × 10,659.28
  4. Step 4: Simplify right side
    11,003.92x = 161,703,622.64
  5. Step 5: Solve for x
    x = 161,703,622.64/11,003.92
  6. Step 6: Final answer
    x = 14,695.09

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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.