Home / 8,676.52-13,010.71-3,129.13

Finding the Fourth Proportional to 8,676.52, 13,010.71 and 3,129.13

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Solution

The fourth proportional to 8,676.52, 13,010.71 and 3,129.13 is: 4,692.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.52 : 13,010.71 = 3,129.13 : x
  2. Step 2: Convert to fraction form
    8,676.52/13,010.71 = 3,129.13/x
  3. Step 3: Cross multiply
    8,676.52x = 13,010.71 × 3,129.13
  4. Step 4: Simplify right side
    8,676.52x = 40,712,202.98
  5. Step 5: Solve for x
    x = 40,712,202.98/8,676.52
  6. Step 6: Final answer
    x = 4,692.23

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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.