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Finding the Fourth Proportional to 8,673.11, 13,008.19 and 2,431.69

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Solution

The fourth proportional to 8,673.11, 13,008.19 and 2,431.69 is: 3,647.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.11 : 13,008.19 = 2,431.69 : x
  2. Step 2: Convert to fraction form
    8,673.11/13,008.19 = 2,431.69/x
  3. Step 3: Cross multiply
    8,673.11x = 13,008.19 × 2,431.69
  4. Step 4: Simplify right side
    8,673.11x = 31,631,885.54
  5. Step 5: Solve for x
    x = 31,631,885.54/8,673.11
  6. Step 6: Final answer
    x = 3,647.12

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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.