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Finding the Fourth Proportional to 8,666.82, 12,999.22 and 2,427.33

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Solution

The fourth proportional to 8,666.82, 12,999.22 and 2,427.33 is: 3,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,666.82 : 12,999.22 = 2,427.33 : x
  2. Step 2: Convert to fraction form
    8,666.82/12,999.22 = 2,427.33/x
  3. Step 3: Cross multiply
    8,666.82x = 12,999.22 × 2,427.33
  4. Step 4: Simplify right side
    8,666.82x = 31,553,453.02
  5. Step 5: Solve for x
    x = 31,553,453.02/8,666.82
  6. Step 6: Final answer
    x = 3,640.72

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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.