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Finding the Fourth Proportional to 8,001.05, 11,989.10 and 5,073.20

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Solution

The fourth proportional to 8,001.05, 11,989.10 and 5,073.20 is: 7,601.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,001.05 : 11,989.10 = 5,073.20 : x
  2. Step 2: Convert to fraction form
    8,001.05/11,989.10 = 5,073.20/x
  3. Step 3: Cross multiply
    8,001.05x = 11,989.10 × 5,073.20
  4. Step 4: Simplify right side
    8,001.05x = 60,823,016.81
  5. Step 5: Solve for x
    x = 60,823,016.81/8,001.05
  6. Step 6: Final answer
    x = 7,601.88

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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.