Home / 8,265.31-12,397.97-2,109.31

Finding the Fourth Proportional to 8,265.31, 12,397.97 and 2,109.31

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Solution

The fourth proportional to 8,265.31, 12,397.97 and 2,109.31 is: 3,163.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.31 : 12,397.97 = 2,109.31 : x
  2. Step 2: Convert to fraction form
    8,265.31/12,397.97 = 2,109.31/x
  3. Step 3: Cross multiply
    8,265.31x = 12,397.97 × 2,109.31
  4. Step 4: Simplify right side
    8,265.31x = 26,151,193.10
  5. Step 5: Solve for x
    x = 26,151,193.10/8,265.31
  6. Step 6: Final answer
    x = 3,163.97

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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.