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Finding the Fourth Proportional to 8,673.05, 13,009.59 and 2,099.21

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Solution

The fourth proportional to 8,673.05, 13,009.59 and 2,099.21 is: 3,148.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.05 : 13,009.59 = 2,099.21 : x
  2. Step 2: Convert to fraction form
    8,673.05/13,009.59 = 2,099.21/x
  3. Step 3: Cross multiply
    8,673.05x = 13,009.59 × 2,099.21
  4. Step 4: Simplify right side
    8,673.05x = 27,309,861.42
  5. Step 5: Solve for x
    x = 27,309,861.42/8,673.05
  6. Step 6: Final answer
    x = 3,148.82

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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.