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Finding the Fourth Proportional to 8,008.92, 11,042.19 and 5,171.49

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Solution

The fourth proportional to 8,008.92, 11,042.19 and 5,171.49 is: 7,130.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.92 : 11,042.19 = 5,171.49 : x
  2. Step 2: Convert to fraction form
    8,008.92/11,042.19 = 5,171.49/x
  3. Step 3: Cross multiply
    8,008.92x = 11,042.19 × 5,171.49
  4. Step 4: Simplify right side
    8,008.92x = 57,104,575.16
  5. Step 5: Solve for x
    x = 57,104,575.16/8,008.92
  6. Step 6: Final answer
    x = 7,130.12

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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.